1 answer

QUESTION 1 A nucleosome consists of A. a cluster of histone proteins that are wrapped around...

Question:

QUESTION 1 A nucleosome consists of A. a cluster of histone proteins that are wrapped around the DNA double helix. B. two pep
QUESTION 1 A nucleosome consists of A. a cluster of histone proteins that are wrapped around the DNA double helix. B. two peptides each of histones H2A, H2B, H3 and H4, wrapped by the DNA double helix. the DNA polymerase complex and the Okazaki fragments of approximately 200 bases in C. length. D. clusters of ribosomal large subunits and small subunits bound to the DNA double helix. E. one of each of the 5 types (H1 - H4) of histone proteins. QUESTION 2 Which of the following histones bind to the linker DNA between two adjacent nucleosomes? ОА. Н4 B. H1 C. H2A D. H3 E. H2B QUESTION 3 3 Type of chromatin that participates in active transcription of DNA to mRNA products is O A. euchromatin B. karyotype C.centromere D. heterochromatin QUESTION 4 3 Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Answers

1. Answer - B

Nucleosome is the basic unit of chromosome. It consists of a double helix up to 147 base pairs around the octane of histone proteins. There are two set of histones - H2A, H2B , H3 and H4.

2. Answer - B

Histone H1 plays an important role in the stabilizing of chromatin fibre by binding with 20-80 base pairs long "linker DNA".

3.

Answer - A

Euchromatin participates in active transcription so a mRNA is formed from DNA.

.

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