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प्रश्न
Very Short Answer Question:
Which are the nucleosomal 'core' histones?
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उत्तर
The nucleosome core is made up of two molecules of each of four types of histone proteins viz. H2A, H2B, H3 and H4.
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संबंधित प्रश्न
Differentiate between Heterochromatin & Euchromatin.
Write a note on the packaging of DNA in Eukaryotes.
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.
Name the linkage present between the nitrogen base and pentose sugar in DNA.
Flagella are present both in prokaryotic and eukaryotic cells, however, they differ in:
Whittaker placed prokaryotes in:
Which one of the following statements about Histones is wrong?
What is the function of histones in DNA packaging?
In a mature, functional mRNA of eukaryotes______.
The non-condensed, light stained and transcriptionally active segments of chromosomes are called ______.
