Suppose that a cell is unable to replicate its DNA

Q Suppose that a cell is unable to replicate its DNA Which

If a cell becomes arrested within the cell cycle because it is unable to replicate its DNA, in which of the stages would you predict it would become arrested? a) mitotic phase b) Gap 2 phase c) Gap 1 phase d) S phase e) None of the above is correct; the cell would simply die Suppose that a cell is unable to replicate its DNA. Which of the following would NOT be present in this cell? a. sister chromatids b. centromere c. DNA d. genes e. homologous chromosomes 6. True/False: If a parent cell contained 30 chromosomes, its daughter cells would contain 15 following mitosis. 7. True/False: The cell below is diploid. 8

Suppose that a cell is unable to synthesize uracil. Which of the following would be immediately prohibited? (1) transcription (2) replication of DNA (3) the making of proteins (4) meiosis. (3) 20 amino acids How could a cell replicate single stranded DNA so the daughter cells could receive an exact copy of the genes present in the original cell? Explain why it is an advantage for DNA to have a double.

A cell that lacks the ability to make DNA repair enzymes will a) be able to correctly replicate its DNA, but it will need more time to do so. b) replicate its DNA as rapidly as a normal cell, but the resulting DNA will have more errors in it. c) be unable to replicate its DNA. d) replicate its DNA as well as a cell with intact repair enzymes The cell's DNA must be transcribed before it can be replicated. New cells can be created only after transcription has taken place. Transcription can be used when a cell is unable to replicate. Replication creates new DNA, while transcription creates mRNA What would be the conseyof a cell being unable to replicate its DNA? close. Start your trial now! First week only $4.99! arrow_forward. Question. What would be the conseyof a cell being unable to replicate its DNA? check_circle Expert Answer. Want to see the step-by-step answer? See Answer

Unit 3 exam review (Bio principles) Meiosis Pt

  1. g back together before the new strands can be replicated
  2. If the cell has not properly copied its chromosomes, an enzyme called cyclin dependent kinase, or CDK, will not activate the cyclin, and the cell cycle will not proceed to the next phase. The cell will undergo cell death
  3. utes!
  4. Every time a strand of DNA is replicated the section of DNA behind the RNA primer cannot be replicated. This is an issue only for eukaryotic cells that have linear strands of DNA. Prokaryotic cells have a single ring of DNA so all their DNA is able to be replicated. Telomeres provide a solution to this problem
  5. The parent cell is also making a copy of its DNA to share equally between the two daughter cells. The mitosis division process has several steps or phases of the cell cycle—interphase, prophase, prometaphase, metaphase, anaphase, telophase, and cytokinesis—to successfully make the new diploid cells
  6. Question 32. SURVEY. 60 seconds. Q. A scientist used a radioactive isotope of nitrogen to label the nitrogenous bases of the DNA in bacterial cells. The labeled cells were then allowed to grow and divide for one generation in a medium of non-radioactive nitrogen
  7. or grooves are binding sites for DNA binding proteins during processes such as transcription (the creation of RNA from a DNA template) and replication. At around the same time, three hypotheses for the modes of DNA replication were being considered.

Antibiotics Kill Bacteria By Damaging Their DNA. MIT and Boston University researchers have discovered that while antibiotics attack many parts of bacteria cells, it is the damage they cause to. Question 1 8 out of 8 points Imagine that a researcher has found an unusual cell that seems to be unable to replicate its DNA. The problem is most likely linked to which phase of the cell cycle? Selected Answer: S of interphase Correct Answer: S of interphase Question 2 8 out of 8 points Which of these conditions is caused by nondisjunction of autosomal chromosomes When E coli makes a copy of its DNA, it makes approximately one mistake for every billion new nucleotides. It can copy about 2000 letters per second, finishing the entire replication process in less than an hour. Compared to human engineering, this error rate is amazingly low. E coli makes so few errors because DNA is proofread in multiple ways

When a cell divides into two daughter cells, it must replicate its DNA according to a very specific scenario. In the presence of some disruptive elements, however, cancer cells are unable to.. Lysogenic cycle. Not to be confused with Lytic cycle. Lysogenic Cycle:1. The prokaryotic cell is shown with its DNA, in green. 2. The bacteriophage attaches and releases its DNA, shown in red, into the prokaryotic cell. 3. The phage DNA then moves through the cell to the host's DNA. 4 View Homework Help - MCB100Assignment_57 from MCB 100 at University of Illinois, Urbana Champaign. 47) A cell that lacks the ability to make DNA repair enzymes will A) be unable to replicate its

What happens if a cell can't replicate its DNA? - YouTub

  1. utes. But the cell division takes 20
  2. b. There would be not effect, because skin cells do not replicate. c. The cell would be stuck in S phase and unable to replicate. d. The cell would not be able to enter G1. e. The cell would be unable to replicate itself. 6. Imagine that there is a mutation in a CDK gene such that its gene product is present but nonfunctional. Based on what yo
  3. What would be the consequence of a cell being unable to replicate its DNA? 0 The cell would not be able to undergo cell division as it normally would. 0 The cell would be unable to make proteins based on the information in DNA. 0 The cell would not form a nucleus, because the nucleus contains DNA. 0 The cell would become a cancer cell. dividing.

In mitosis, one cell divides to produce two daughter cells, each with a complete set of chromosomes. (It may seem odd, but the cells produced by cell division are called daughter cells, even in boys and men.) 6. Before mitosis begins, a cell makes a copy of all the DNA in each chromosome Transcription can be used when a cell is unable to replicate. Replication creates new DNA, while transcription creates mRNA. Tags: Question 4 . SURVEY . 30 seconds . Q. While the DNA in a human skin cell was being replicated, a single base was miscopied. What will be the most likely result of this for the cell in which it happened There would still be the same primal soup in the sea —- just going to waist. And all the oxygen would still be tied up as iron oxide. All the iron deposits of the world were taken out of solution by bacteria. Don't count on silicon-based lifeforms..

DNA replication is an essential part of cell division and the growth of organisms. The process of DNA replication uses strands of DNA as templates to create new strands of DNA. The replication of DNA is an incredibly fast and accurate process. On average, around one mistake is made for every 10 billion nucleotides that are replicated 180 seconds. Report an issue. Q. A particular cell produces 1) a cell membrane receptor protein, 2) a protein that makes up the cytoskeleton of the cytoplasm, and 3) a lipid based hormone that will be secreted into the bloodstream Question: Suppose The Experiment Of Meselson And Stahl Was Performed On A Sample Of 8 Cells, Cach Containing One Copy Of Its Circular Double-stranded DNA Genome, And That Had Been Growing On Normal 14N Medium. You Then Grew The Cells For 3 Generations In Medium Containing 15. The Outcome Would Be 64 Cells With Single-stranded DNA Molecules With 15 Biologists find cell extrusion, a process that helps organisms eliminated unneeded cells, is triggered when cells can't replicate their DNA during cell division. In humans, extrusion may serve as. During DNA replication, DNA unwinds so it can be copied. At other times in the cell cycle, DNA also unwinds so that its instructions can be used to make proteins and for other biological processes. But during cell division, DNA is in its compact chromosome form to enable transfer to new cells

The life of cell consists of stages that make up the cell cycle. After a cell is born, it passes through an interphase before it is ready to replicate itself and produce daughter cells. This interphase includes two gap phases (G1 and G2), as well as an S phase, during which its DNA is replicated in preparation for cell division Meiosis - Cell Divisions to Produce Haploid Gametes. Before meiosis, the cell makes a copy of the DNA in each chromosome. Then, during meiosis there are two cell divisions, Meiosis I and Meiosis II. These two cell divisions produce four haploid daughter cells Yeast, which uses 400 replication origins to replicate its 17 chromosomes, takes 30 minutes to complete S phase (replicate its genome). Assume all replicons are the same size, initiate replication at the same time during the cell cycle and are replicated at the same rate. (a)How many base pairs will be replicated every minute per replicon let's talk a little bit about the lifecycle of a cell in particular we're going to talk about interface the interface part of the lifecycle of a cell and as we'll see interphase is where a cell spends most of its life let's draw a timeline for a cell so let's say this is a this is a I guess you could say a new cell and it will go through interphase so I'm going to make it like a cycle so it's. A eukaryotic cell lacking telomerase would A. be unable to take up DNA from the surrounding solution B. be unable to identify the correct mismatched nucleotides in its daughter DNA. C. experience a gradual reduction of chromosome length with each replication cycle. D. have a greater potential to become cancerous. E

Literally, replication means the process of duplication. In molecular biology, DNA replication is the primary stage of inheritance. Central dogma explains how the DNA makes its own copies through DNA replication, which then codes for the RNA in transcription and further, RNA codes for the proteins by the translation When a cell divides into two daughter cells, it must replicate its DNA according to a very specific scenario. In the presence of some disruptive elements, however, cancer cells are unable to. The division cycle of most cells consists of four coordinated processes: cell growth, DNA replication, distribution of the duplicated chromosomes to daughter cells, and cell division. In bacteria, cell growth and DNA replication take place throughout most of the cell cycle, and duplicated chromosomes are distributed to daughter cells in association with the plasma membrane

DNA is like the instruction manual for building and operating a cell. DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions! Here is a video which uses an animated tutorial to explain the process. Replicate definition, folded; bent back on itself. See more Cancer cells within which of the following biopsy samples would best indicator that the cancer has metastases and is in the bloodstream? lymph node: Researcher found an unusual cell that seems to be unable to replicate its DNA the problem is most linked to which cell cycle? interphas DNA viruses have a DNA core. The viral DNA directs the host cell's replication proteins to synthesize new copies of the viral genome and to transcribe and translate that genome into viral proteins. DNA viruses cause human diseases such as chickenpox, hepatitis B, and some venereal diseases like herpes and genital warts

What would be the consequence of a cell being unable to

  1. e. About what percentages are the other. nitrogenous bases? answer choices. 36% guanine, 14% adenine, 36% cytosine. 14% guanine, 14% adenine, 14% cytosine
  2. G1 Phase. The first stage of interphase is called the G1 phase, or first gap, because little change is visible.However, during the G 1 stage, the cell is quite active at the biochemical level. The cell is accumulating the building blocks of chromosomal DNA and the associated proteins, as well as accumulating enough energy reserves to complete the task of replicating each chromosome in the nucleus
  3. Before a cell begins DNA replication, it must ensure that it is biologically ready to take on such a process. G1 is the phase when this cellular monitoring takes place. During G1, the cell reviews the cellular environment and the cell size to ensure that the conditions are appropriate to support DNA replication. Not until the cell is ready does.
  4. Diploid cells have two sets of chromosomes.Haploid cells have only one. The diploid chromosome number is the number of chromosomes within a cell's nucleus.; This number is represented as 2n.It varies across organisms. Somatic cells (body cells excluding sex cells) are diploid.; A diploid cell replicates or reproduces through mitosis.It preserves its diploid chromosome number by making an.

The cell growth, inheritance and containment is controlled by its DNA (deoxyribonucleic acid). DNA is a highly complex molecule manufactured in the cell nucleus and serves as the cell's brain. DNA is the blueprint for everything the cell does. In a human cell, the DNA is arranged in 46 distinct sections called chromosomes B) The molecules responsible for cell-cell adhesion (cell junctions) were irreversibly destroyed during the experiment. C) The molecules responsible for cell-cell adhesion (cell junctions) differed between the two species of sponge. D) One cell functioned as the nucleus for each organism, thereby attracting only cells of the same pigment The Hayflick limit has been found to correlate with the length of the telomeric region at the end of chromosomes. During the process of DNA replication of a chromosome, small segments of DNA within each telomere are unable to be copied and are lost. This occurs due to the uneven nature of DNA replication, where leading and lagging strands are not replicated symmetrically Suppose that we use a specific cloned gene x + and transform x − cells of the donor organism into x +. Many of the x + transformants will be mutant for the genes into which the transforming DNA has inserted ectopically. A subset of such x + cells will be mutant for the target gene a +, the gene of interest, and will be of phenotype a − Replicate definition is - duplicate, repeat. How to use replicate in a sentence

DNA Replication. The base pairing rules are crucial for the process of replication. DNA replication occurs when DNA is copied to form an identical molecule of DNA. DNA replication happens before cell division. Below are the steps involved in DNA replication: The DNA helix unwinds like a zipper, as the bonds between the base pairs are broken David Mu, Aziz Sancar, in Progress in Nucleic Acid Research and Molecular Biology, 1997. F Host Cell Reactivation. Host cell reactivation measures the in vivo restoration of biological activity to in vitro-damaged DNA.The ability of UV-damaged viruses to replicate in infected cells hinges on the genetic makeup of the host cells. The use of damaged phage or plasmid DNA provides certain.

Viral replication involves six steps: attachment, penetration, uncoating, replication, assembly, and release. During attachment and penetration, the virus attaches itself to a host cell and injects its genetic material into it. During uncoating, replication, and assembly, the viral DNA or RNA incorporates itself into the host cell's genetic. Mismatch repair happens right after new DNA has been made, and its job is to remove and replace mis-paired bases (ones that were not fixed during proofreading). Mismatch repair can also detect and correct small insertions and deletions that happen when the polymerases slips, losing its footing on the template Rat cells transformed by polyoma virus contain, in addition to integrated viral DNA, a small number of nonintegrated viral DNA molecules. The free viral DNA originates from the integrated form through a spontaneous induction of viral DNA replication in a minority of the cell population. Its presence is under the control of the viral A locus 9. DNA is a polymer consisting of a double strand of _____. a) polypeptide b) amino acids c) nucleotides d) fibrils 10. Because of the strict pairing rules, each side of a DNA molecule can be used as a template to make another strand. DNA strands are unzipped and new DNA strands can be built on to each of the old halves. This is called _____

Q4.3. What would be the consequence of a cell being ..

  1. Before a cell divides, it must make copies of its DNA and all the cellular organelles needed for the daughter cells. Each time DNA replication occurs, mutations occur. The cell has mechanisms for repairing both mistakes in DNA replication and other non-replication mutations that occur, but they are not foolproof
  2. In addition to DNA replication, cell growth continues to occur through the S phase, and proteins and enzymes necessary for DNA synthesis continue to be produced. DNA Synthesis. The DNA molecule is in the form of a double helix. During S phase, an enzyme called helicase unwinds the DNA strand, in the same way that you would unzip a zipper
  3. Over a lifetime, our DNA can undergo changes or mutations in the sequence of bases: A, C, G and T. This results in changes in the proteins that are made. This can be a bad or a good thing. A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke
  4. Lysogenic cycle. Not to be confused with Lytic cycle. Lysogenic Cycle:1. The prokaryotic cell is shown with its DNA, in green. 2. The bacteriophage attaches and releases its DNA, shown in red, into the prokaryotic cell. 3. The phage DNA then moves through the cell to the host's DNA. 4
  5. Experiments also provide evidence that the chromatin reconstitution in the cell-free reassembled nucleus is a progressive process, and that the nucleus can replicate its DNA. Based on these observations, we suppose that the chromatin of the cell-free reassembled nucleus may be structurally and functionally similar to the chromatin of the intact.

Key Takeaways Key Points. From the perspective of the virus, the purpose of viral replication is to allow production and survival of its kind. Most double-stranded DNA viruses replicate within the host cell nucleus, including polyomaviruses, adenoviruses, and herpesviruses—poxviruses, however, replicate in the cytoplasm Here, a special viral enzyme called integrase is used to insert the viral DNA into the host cell's DNA. Replication. Once its DNA has been inserted to the host cell's genome, the virus uses. Topoisomerase prevents the over-winding of the DNA double helix ahead of the replication fork as the DNA is opening up; it does so by causing temporary nicks in the DNA helix and then resealing it. Because DNA polymerase can only extend in the 5′ to 3′ direction, and because the DNA double helix is antiparallel , there is a slight problem. A virus is a tiny infectious agent that reproduces inside the cells of living hosts.When infected, the host cell is forced to rapidly produce thousands of identical copies of the original virus. Unlike most living things, viruses do not have cells that divide; new viruses assemble in the infected host cell.But unlike simpler infectious agents like prions, they contain genes, which allow them.

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Which of the following is most likely to result if a cell is unable to produce histone proteins? A) there would be an increase in the amount of DNA produced during replication. B) the cell's DNA could not be packed into its nucleus. C) the 30-nm fiber pack more tightly and become thinner than 30 nm Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell. Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA Typically, the nucleus is the most prominent organelle in a cell. The nucleus (plural = nuclei) houses the cell's DNA in the form of chromatin and directs the synthesis of ribosomes and proteins. Let us look at it in more detail ( Figure 3.11 ). Figure 3.11 The outermost boundary of the nucleus is the nuclear envelope Cells are the building blocks of all living organism, and they exist by the process of mitosis of other cells. Mitosis also involves the replication of DNA, this allows DNA to be passed on. DNA contains genetic information of everything that is happening in one's body: from the coding of an amino acid to the colour of one's eyes To prepare for mitosis, the cell makes a copy of the long DNA molecule in each chromosome; this is called . DNA replication. DNA replication results in two identical copies of the DNA with the same alleles for each of the genes. Beginning of Mitosis. Each copy of the long DNA molecule is wound tightly into a compact chromatid


The cell cycle is the complex sequence of events by which cells grow and divide. In eukaryotic cells, this process includes a series of four distinct phases. These phases consist of the Mitosis phase (M), Gap 1 phase (G 1), Synthesis phase (S), and Gap 2 phase (G 2).The G 1, S, and G 2 phases of the cell cycle are collectively referred to as interphase A) Some of the bacterial DNA was not able to replicate because it lacked some of its own genetic material. B) The bacteria that survived were transformed with a plasmid that contains the resistance gene for ampicillin. C) The pili of the bacterial could not attach to the ampicillin

How could a cell replicate single stranded DNA so the

replication site along its chain of DNA E)eukaryotic cells have shorter segments of DNA 18.Although eukaryotic cells contain over a thousand times more DNA than is found in a prokaryotic cell, it only takes a eukaryotic cell a few hours to copy all of its genetic material becaus Adenoviruses deliver DNA that can enter the cell nucleus, which brings up the question of whether they can alter DNA. That's an easy one -- no. Adenoviruses -- even as they occur in nature -- just. Sometimes called molecular photocopying, the polymerase chain reaction (PCR) is a fast and inexpensive technique used to amplify - copy - small segments of DNA. Because significant amounts of a sample of DNA are necessary for molecular and genetic analyses, studies of isolated pieces of DNA are nearly impossible without PCR amplification DNA replication is the process by which a molecule of DNA is duplicated. When a cell divides, it must first duplicate its genome so that each daughter cell winds up with a complete set of chromosomes. DNA replication is probably one of the most amazing tricks that DNA does. If you think about it. HIV Replication Cycle. This infographic illustrates the HIV replication cycle, which begins when HIV fuses with the surface of the host cell. A capsid containing the virus's genome and proteins then enters the cell. The shell of the capsid disintegrates and the HIV protein called reverse transcriptase transcribes the viral RNA into DNA

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In many types of cells, telomeres lose a bit of their DNA every time a cell divides. Eventually, when all of the telomere DNA is gone, the cell cannot replicate and dies. White blood cells and other cell types with the capacity to divide very frequently have a special enzyme that prevents their chromosomes from losing their telomeres When a cell seeks to reproduce, one of the first things it does is make a copy of its DNA. This is the S phase of the cell cycle, which stands for the Synthesis of a new copy of the cell's DNA. The information encoded in DNA is preserved by the specific pairing of DNA bases with each other The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells. These events include the duplication of its DNA (DNA replication) and some of its organelles, and subsequently the partitioning of its cytoplasm and other components into two daughter cells in a process called cell division

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Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus (meaning its DNA is surrounded by a membrane), and has other membrane-bound organelles that allow for compartmentalization of functions Alkylating agents keep the cell from reproducing (making copies of itself) by damaging its DNA. These drugs work in all phases of the cell cycle and are used to treat many different cancers, including cancers of the lung, breast, and ovary as well as leukemia, lymphoma, Hodgkin disease, multiple myeloma, and sarcoma The replication fork is a region where a cell's DNA double helix has been unwound and separated to create an area where DNA polymerases and the other enzymes involved can use each strand as a template to synthesize a new double helix. An enzyme called a helicase catalyzes strand separation. Once the strands are separated, a group of proteins called helper proteins prevent th Steps of Virus Infections. A virus must use its host-cell processes to replicate. The viral replication cycle can produce dramatic biochemical and structural changes in the host cell, which may cause cell damage. These changes, called cytopathic effects, can change cell functions or even destroy the cell Mitosis is simply a stage in a cells life cycle, which could be broken down further into stages of mitosis. The rest (so not mitosis) is know as Interphase and is where the cell does its normal function, so if it's the cell is in a region of muscl..

What would be the conseyof a cell being unable to

When cells replicate, they undergo a series of steps — always in the same order. In the first phase, a gap phase called G1, the cell grows and checks that everything is okay for it to divide. The second phase is the S phase, in which DNA is replicated in order to form two sets of chromosomes Viruses are unable to generate energy. As obligate intracellular parasites, during replication, they fully depend on the complicated biochemical machinery of eukaryotic or prokaryotic cells. The main purpose of a virus is to deliver its genome into the host cell to allow its expression (transcription and translation) by the host cell Cytokinesis ends the cell division process. Whether the cell was eukaryotic or prokaryotic, these basic events must occur. Cytokinesis is the process where one cell splits off from its sister cell. It usually occurs after cell division. The Cell Cycle is the sequence of growth, DNA replication, growth and cell division that all cells go through

DNA replication is important because it creates a second copy of DNA that must go into one of the two daughter cells when a cell divides. Without replication, each cell lacks enough genetic material to provide instructions for creating proteins essential for bodily function. DNA is generally tightly packed into a structure called chromatin The DNA in every cell in our body is constantly in danger of becoming damaged. But cells contain many different proteins whose job is to repair damaged DNA. Most DNA damage gets repaired straight away because of these proteins. But if the DNA damage occurs to a gene that makes a DNA repair protein, a cell has less ability to repair itself Whenever a cell undergoes reproduction, the genetic material (DNA) of the cell also produces a duplicate copy of itself via replication. The duplicated copy of the DNA then accommodates in the.