Histone proteins are defined as the collection of proteins that are involved in the formation of nucleosome structure of the eukaryotic chromatin. Histones are highly basic in nature and are found inside the nucleus of the eukaryotic cell. These histones are responsible for packing and ordering the DNA in the form of structural units which are termed as nucleosomes.
The amino acid residues like arginine and lysine are present in abundance in these histones. The DNA coils around these histones and hence, the length of the DNA is reduced in this way. Take an example of a diploid cell of a human which has 1.8m long DNA in it but when it is coiled on the histones, the chromatin is formed which is only 90 micrometres in size.
Meiotic nondisjunction is much more likely than mitotic nondisjunction. Based on
A woman who is heterozygous, Bb, has brown eyes;
Explain why familial breast cancer shows a dominant pattern of inheritance in
How is an F′ factor different from an F factor?
With regard to the timing of conjugation, explain why the recipient
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Explain the type of speciation (allopatric, parapatric, or sympatric
In fruit flies, curved wings are recessive to straight wings,
A recessive allele in mice results in an unusally long neck.
