Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Question
Chapter 17, Problem 1AWK
Summary Introduction
To review:
Effects of pairing C with T during
Introduction:
Deoxyribonucleic acid (DNA) is actually made up of four nitrogenous bases, i.e., adenine, thymine, guanine, and cytosine (A, T, G, and C). One nitrogenous base of one DNA binds with another nitrogenous base present on another DNA, thus producing double helix DNA. Normally G binds with C and A binds with T.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Origins of replication, centromeres, and telomeres are all involved in replication and segregation of chromosomes. Classify each
statement below under the structure it describes.
Each mammalian cell contains 10,000
of these, scattered through the
chromatin of the nucleus.
As a cell divides successively, this
structure is prone to shortening in the
absence of an enzyme that lengthens
it; shortening puts a limit on how many
times a particular cell is able to divide.
If an average human chromosome had
only one of these, its replication would
take more than a month.
Origin of replication
Reset
Certain proteins unwind the DNA
double helix here to create mirror-
image replication forks.
In humans, this component consists of
the sequence TTAGGG repeated
250-1500 times, depending on the cell
type.
This component can occur almost
anywhere on a chromosome, except
at the very ends.
Telomere
This structure is found at the ends of
linear chromosomes.
Cleavage of the cohesin complex of this…
Give typed full explanation
Cell cultures can be synchronized, or brought into the same phase of the cell cycle, by various means. For example, adding thymidine to a cell culture causes all cells to become arrested early in S phase. What is the mechanism by which thymidine treatment blocks DNA replication?
Chapter 17 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 17 - How do you feel about the creation and then...Ch. 17 - How far should we go–to what lengths and at what...Ch. 17 - Describe how DNA is replicated before cell...Ch. 17 -
2. Compare and contrast the processes of...Ch. 17 - Explain what mutations are and the role of DNA...Ch. 17 - Name the four phases of mitosis and describe...Ch. 17 -
5. Explain why only one large egg is formed...Ch. 17 - Describe what is meant by selective gene...Ch. 17 - Explain how factors present in the environment can...Ch. 17 - Describe how ribosomes contribute to the formation...
Ch. 17 - Prob. 9CRCh. 17 - Prob. 10CRCh. 17 - What would be the outcome if a cell completed...Ch. 17 - Prob. 2TYCh. 17 - Prob. 3TYCh. 17 - Prob. 4TYCh. 17 - Which of the following are listed in order from...Ch. 17 - Prob. 6TYCh. 17 - Which is likely to be the shortest chain of...Ch. 17 - How many different amino acids could be encoded if...Ch. 17 - Prob. 9TYCh. 17 - Why do cells within an organism differentiate,...Ch. 17 - Which method of cloning is most similar to the way...Ch. 17 - Prob. 12TYCh. 17 - Prob. 13TYCh. 17 - Prob. 14TYCh. 17 -
15. How does the production of sperm differ from...Ch. 17 - Prob. 1AWKCh. 17 - Prob. 2AWKCh. 17 - Prob. 3AWKCh. 17 - Prob. 4AWKCh. 17 - Mitochondria contain their own DNA that is...Ch. 17 - Bacteria can reproduce by simple cell division....
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Hypothetically, a cell has DNA that weighs 10 picograms. This cell goes through S phase and is about to undergo mitosis. How much does the DNA of this cell weight now? How much would the DNA of the two cells produced at the end of mitosis weigh? Explain your reasoning.arrow_forwardAccording to the question，how do we know if we see more than 2 copies ，it indicate the cell is undergoing S phrase？How about when cell is undergoing mitosis？How many fluorescent spots would we see？？I am confused.arrow_forwardDNA replication is vital for successful cell division. Explain the process of DNA replication. Make sure to use the following terms: helicase, S-phase, DNA polymerase and DNA ligase, template, free nucleotides. Use the diagram if it helps you illustrate your points.arrow_forward
- A temperature-sensitive mutant yeast strain stops dividing when shifted from 25°C to 37°C. These cells are analyzed at different temperatures by a machine that measures the amount of DNA they contain, and the following graphs are obtained. Cells in G1 phase should have ___ unit(s) amount of DNA. Which of the following would explain the behavior of your mutant? Mark yes or no for each of the following choices. Inability to initiate DNA replication Defect in chromosome condensation Defect in centrosome duplication Defect in cytokinesisarrow_forwardConsider the figure beow, which depicts chromatin within the neucleus of a eukaryotic cell. nucleus O The letter A indicates regions of a single chromosome which are not expressed, and the letter B indicates regions of a single chromosome which are expressed. O Both answer choice A and answer choice B are correct. The letter A indicates regions of a single chromosome which are condensed and attached to the nuclear lamina, and the letter B indicates regions of a single chromosome which are partially decondensed. O Answer choices A, B and C are all correct. O The letter A represents repressed TADS, and the letter B represents active TADS.arrow_forwardGive only typing answer with explanation and conclusion why is DNA replication semi-conservative? like how is this process discontinuous and continuous?arrow_forward
- The microscope image above shows the human chromosomes from a white blood cell. To create the image, researchers put cells in culture under conditions that encourage the cells to divide. They bathed the cells in a hypotonic (low salt) solution, which caused the cells to swell until their plasma membrane burst open. They "squashed" the chromosomes to spread them out, and stained them with a dye to make them visible under the microscope. Human chromosomes are numbered from longest (1) to shortest (22) plus the sex chromosomes X and Y. In the image chromosome 1 is about 7 micrometers. Answer the following questions. 1) What word(s) in the description above indicates that the chromosomes are not from a cell undergoing meiosis? 2) Based on the size, shape and appearance of the chromosomes in the image, in what cell cycle stage was the cell that the chromosomes came from? How can you tell? 3) Does the image suggest that centromere sequences are always located in the middle of a…arrow_forwardWhen cells undergo apoptosis, their DNA becomes fragmented. When the DNA is run out on a gel, the resulting fragments differ in size by a standard amount, about 200 bp, so that the resulting separated DNA has a characteristic "ladder" appearance. Control Staurosporine treatedarrow_forwardAddress the general properties of the chromatin within the following types of DNA: DNA undergoing active transcription DNA within a mitotic chromosome DNA immediately after passage of the replication fork centromeric DNAarrow_forward
- 2arrow_forwardMany chromosomes have structures called telomeres at each end. Mark all the TRUE statements about telomeres below. Mark all that apply. Select one or more: a. Telomeres protect the ends of the chromosomes b. Telomeres hold sister chromatids together after replication c. Human telomeres consist of a specific base sequence (TTAGGG) repeated about 2500 times d. Telomeres are present in all prokaryotes and eukaryotesarrow_forwardBelow is a diagram of DNA replication as currently believed to occur in E. coli. Arrows start from numbers and end at specific points. Answer the questions relating to the locations specified by the numbers (1) Which end (5' or 3') of the molecule is here? (2) Which enzyme is probably functioning here to deal with supercoils in the DNA? (3) Which enzyme is probably functioning here to unwind the DNA?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Human Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStax
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning
cell division of meiosis and mitosis; Author: Stated Clearly;https://www.youtube.com/watch?v=A-mFPZLLbHI;License: Standard youtube license