Describe the mechanism by which histone modifications are established after DNA replication and cell division. What are some things that could go wrong if modifications can't be maintained? Think about what histone modifications do to DNA and why cells maintain parts of their chromosome as heterochromatin.

Describe the mechanism by which histone modifications are established after DNA replication and cell division. What are some things that could go wrong if modifications can't be maintained? Think about what histone modifications do to DNA and why cells maintain parts of their chromosome as heterochromatin.

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter8: The Structure, Replication, And Chromosomal Organization Of Dna

Section: Chapter Questions

Problem 25QP: Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide...

See similar textbooks

Related questions

Q: Nucleosomes are the ball-like structures around which the double helix winds. What proteins make up…

Q: How many copies of each type of core histone would it take to wrap the entire human genome into…

A: Introduction -The haploid human genome is made up of roughly 3 billion base pairs of DNA organised…

Q: Describe chromatin when the CpG islands are methylated?

A: The eukaryotic chromosome is made of half DNA and half proteins. Out of total proteins, one half is…

Q: State the function of histones in DNA packaging.

A: Histones are highly basic proteins because they are rich in lysine and arginine residues. They are…

Q: The continuity of life depends on a cell cycle during which genetic information is passed from a…

A: Cell cycle regulation is important because it allow cells to only divide when conditions are…

Q: Think about the important functions of telomeres. Now, imagine a scenario in which a mutant…

A: Introduction Telomeres are repeating sequences that protect the natural ends of linear eukaryotic…

Q: strand: (d) Specify the anticodon present on each of the transfer RNA's involved.

A: Deoxyribonucleic Acid (DNA) is a two-stranded biomolecule. It is a build-up of nucleotides. Distinct…

Q: Describe the levels of chromatin packing you’d expect to see in aninterphase nucleus.

A: DNA is Deoxyribonucleic acid has a deoxyribose as pentose sugar. Its structure has H group attached…

Q: Part A Telomere shortening puts a limit on the number of times a cell can divide. Research has shown…

A: A telomere is a region present at the end of a chromosome. It is a highly repetitive region which…

Q: I am trying to understand DNA/chromosome structure and replication. I have a culture dish of human…

A: DNA is the genetic material present in the nucleus of the cells of an organism. It directs the…

Q: State the function of histones in DNA packaging.

A: Introduction In this question we have to state the function of histones in DNA packaging.

Q: List three major CONSEQUENCES of the lack of telomeres, based upon what you know about their normal…

A: Telomere- Telomeres are distinctive structures found at the ends of our chromosomes. They are…

Q: ckaging of chromosomal DNA by histones with diagrammatic representations. Name the various histone…

A: DNA stands for the deoxyribonucleic acid. It act is the genetic material in most of the organisms.…

Q: In DNA repair, how does the normal allele of BRCA1 work? Is it an oncogene or a tumor suppressor…

A: During the replication process, the base airs are mismatched or some of the base pairs undergo…

Concept explainers

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:

Question

Definition Definition Mechanism by which deoxyribonucleic acid (DNA) is capable of producing an exact copy of itself. DNA molecules utilize a semiconservative method for replication. DNA replication is the most essential part of biological inheritance and is crucial for cell division during growth and repair of damaged tissues.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

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

Which of the following statements concerning eukaryotic chromatin is true. Histones have an overall negative charge. Euchromatin is more condensed then heterochromatin. After replication nucleosomes are made up of a mixture of old and new histone proteins. Euchromatin is associated with the centromere and telomere regions. Heterochromatin are regions of active transcription.
Discuss the levels of chromosomal organization with reference to the following terms: a. nucleotide b. DNA double helix c. histones d. nucleosomes e. chromatin
Address 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 DNA
The continuity of life depends on a cell cycle during which genetic information is passed from a parent cell to daughter cells. Because cell division plays several important roles in life, it is important that the cycle be regulated. Which of the following are reasons the cell cycle must be regulated? Select all that apply. The continuity of life depends on a cell cycle during which genetic information is passed from a parent cell to daughter cells. Because cell division plays several important roles in life, it is important that the cycle be regulated.Which of the following are reasons the cell cycle must be regulated? Select all that apply.[ ]To make sure cells only divide when conditions are favorable for growth and development of the organism[ ]To make sure daughter cells end up with the right number of chromosomes[ ]To make sure daughter cells are genetically different from the parent cell[ ]To allow cells to respond to cues from their internal state and from their environment.
Describe the appearance and composition of chromatin and the structure of nucleosomes. Comment on the significance of histone proteins.
Describe the differences between normal vs cancer cells as shown below: Nucleus Nucleolus Cell, membrance Cytoplasm Chromatin Strain artifact Normal cell Chromatin clumps, Nucleus Cytoplasm Nucleolus Cancer cell
If mutations occur in DNA, there are several mechanisms by which a cell can repair the defect. One method that can be used is nucleotide extision repair. All of the following characterize nucleotide excision repair, except: DNA ligase will replace the excised DNA and seal the backbone Enzymes can cleave the damaged region DNA can be opened to form a bubble so proteins can access the damaged DNA Can identify thymine dimers
The interphase is the part of the eukaryotic cell cycle that is most transcriptionally active. Gene regulation during this phase involves changes in the chromatin. a) What is chromatin? b) How can the chromatin structure change?
Which histone helps stabilize the solenoid structure of eukaryotic chromatin? H4 H3 H2B H2A H1
Changes in chromatin packing correlate with changes in gene expression in most cells. Why do you think this is the case?
In studies on chromatin it has been reported that DNA that is being actively transcribed is more sensitive to digestion by DNase I. Which of the following events is known to make DNA more sensitive to digestion by DNase I? Formation of heterochromatin DNA methylation All of the provided answers are correct. Acetylation of histone O Deacetylation of histone
When chromatin is treated with non-specific nucleases, what is the length of the resulting pieces of DNA