Histone acyltransferase is an enzyme that plays its function by attaching the acetyl group to the -NH2 terminal tail that is present in a histone protein. The conserved amino acid i.e. lysine in the histone proteins are acylated by the transfer of acetyl group from acetyl-CoA. In this way, the lysine is converted into N-acetyllysine.
It has been observed that when the histone proteins are acylated, the gene expression is generally increased. It is also linked to the activation of the transcriptional process and is associated with euchromatin. These enzymes are able to acylate the non-histone proteins as well e.g. nuclear receptors and hence the gene expressed is increased.
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
The raw material for evolution is random mutation. Discuss whether or
Why is an antibody used in this experiment? From
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.
