Advertisements
Advertisements
Question
Histones are rich in ______.
Options
alanine and glycine
lysine and arginine
histidine and serine
cysteine and tyrosine
Advertisements
Solution
Histones are rich in lysine and arginine.
Explanation:
Histones are basic proteins that are positively charged and high in the amino acids arginine and lysine. Histones bond closely to DNA, which is an acid H4 since they are basic.
APPEARS IN
RELATED QUESTIONS
How are the following formed and involved in DNA packaging in a nucleus of a cell?
(ii) Nucleosome
(iii) Chromatin
In prokaryotes, the enzyme RNA polymerase recognizes the promoter by its ______.
The length of DNA can be calculated by ______.
The structure in chromatin seen as ‘beads-on string’ when viewed under electron microscope are called ______.
Read the following and answer from given below:
In prokaryotes, DNA is circular and present in the cytoplasm but in eukaryotes, DNA is linear and mainly confined to the nucleus. DNA or deoxyribonucleic acid is a long polymer of nucleotides. In 1953, the first correct double-helical structure of DNA was worked out by Watson and Crick. Based on the X-ray diffraction data produced by Maurice Wilkins and Rosalind Franklin. It is composed of three components, i.e., A phosphate group, a deoxyribose sugar, and a nitrogenous base. Different forms of DNA are B-DNA, Z-DNA, A-DNA, C-DNA, and D-DNA.
The double helix structure of DNA was proposed by ______
Read the following and answer from given below:
The translation is the process of polymerization of amino acids to form a polypeptide. The order and sequence of amino acids are defined by the sequence bases in the mRNA. The amino acids are joined by a bond called a peptide bond. The ribosome is the site of protein synthesis.
During translation, how many initiation factors are required in eukaryotes for initiation reactions?
In the eukaryotic cell cycle, cell fusion experiments show that:
In a mature, functional mRNA of eukaryotes______.
The non-condensed, light stained and transcriptionally active segments of chromosomes are called ______.
What is the final diameter of the supercoiled nucleoid in prokaryotes?
