Describe the following relationships: Nucleotides and DNA Genes, intergenic regions and DNA DNA, histones, and nucleosomes...

Describe the following relationships:
1. Nucleotides and DNA
2. Genes, intergenic regions and DNA
3. DNA, histones, and nucleosomes
4. Nucleosomes and chromatin
5. Chromatin and chromosome
6. DNA, nucleus, mitochondria and genome

Expert Solution

gladiator answered 7 months ago

Discuss how histones and nucleosomes interact with DNA and effects of acetylation and methylation incliding it's...

Discuss how histones and nucleosomes interact with DNA and effects of acetylation and methylation incliding it's epigenetic effects.

The following is a sequence of nucleotides in a DNA double helix that codes for a...

The following is a sequence of nucleotides in a DNA double helix that codes for a short polypeptide. The messenger RNA encoded by this DNA has both translational initiation and termination codons. STRAND A: T T T A G T T A T C A A T C T T G G G T A G A A C STRAND B: A A A T C A A T A G T T A G A A C...

I asked my graduate student to reconstitute nucleosomes in vitro. She purified the 4 histones from...

I asked my graduate student to reconstitute nucleosomes in vitro. She purified the 4 histones from E. coli, mixed them in equimolar amounts in a buffer with low salt to make octamers. She then tried to make nucleosomes by adding DNA to these octamers. Did she succeed in making the nucleosomes?

Which statement does NOT describe DNA structure? The phosphates and sugars of the nucleotides form the...

Which statement does NOT describe DNA structure? The phosphates and sugars of the nucleotides form the “backbone” of the double helix. The two complementary strands are held together by hydrogen bonds. The nitrogen bases of the nucleotides project towards the center of the helix. The 5-carbon sugar in each nucleotide is ribose.

What are nucleotides? How do nucleotides contribute to genes and chromosomes? Why is the trinucleotide sequence,...

What are nucleotides? How do nucleotides contribute to genes and chromosomes? Why is the trinucleotide sequence, CAG, important in Huntington Disease?

When DNA is compacted by histones into 10-nm and 30-nm fibers, the DNA is unable to...

When DNA is compacted by histones into 10-nm and 30-nm fibers, the DNA is unable to interact with proteins required for gene expression. Therefore, to allow for these proteins to act, the chromatin must constantly alter its structure. Which processes contribute to this activity? a. nucleotide removal b. hydrolysis of DNA molecules where they are wrapped around the nucleosome core c. DNA coiling at or around H1 d. accessibility of heterochromatin to deacetylase enzymes e. acetylation of histone proteins What...

What is the approximate rate of addition of nucleotides to a strand of DNA during DNA...

What is the approximate rate of addition of nucleotides to a strand of DNA during DNA replication in eukaryotes? What is the approximate size of the human genome in terms of base pairs? Which enzyme is responsible for adding nucleotides to a strand of DNA during DNA replication?

Radioactive nucleotides can be added to cells to study DNA replication. Basically, if radioactive nucleotides are...

Radioactive nucleotides can be added to cells to study DNA replication. Basically, if radioactive nucleotides are added to a cell, any nucleotide strands that are already present remain non-radioactive but any new strands that are made while the radioactive nucleotides are present are radioactive. In other words, the DNA template (or parent strand) would NOT be radioactive but the new DNA strands (daughter strands) would be. We can then extract the DNA for study or we can use this technique...

QUESTION 5 The replication of DNA requires tRNA to bring nucleotides to the strand of DNA...

QUESTION 5 The replication of DNA requires tRNA to bring nucleotides to the strand of DNA that is being synthesized. True False QUESTION 6 Which of the following individuals is homozygous for both genes A and B? AABb AaBb AAbb AsBB QUESTION 7 A chromosome is a sequence of: genes alleles both A and B are true neither A or B are true QUESTION 8 Different genes: will have different nucleotide sequences will cause the synthesis of proteins that have...

Regulation of mRNA transcription in eukaryotes is tightly regulated. Describe the elements (regions of the DNA)...

Regulation of mRNA transcription in eukaryotes is tightly regulated. Describe the elements (regions of the DNA) involved and what their function is. Describe the transcription factors (proteins) involved in initiating transcription.

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