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प्रश्न
What are histones? What are their functions?
उत्तर
Histones are proteins which are alkaline in nature. It is present in the nucleus of a eukaryotic cell.
DNA gets coiled around the histone protein as a result a very long strand of DNA gets fit into a small space.
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संबंधित प्रश्न
Describe the structure of the following with the help of labelled diagram.
Nucleus
What is a centromere?
How does the position of centromere form the basis of classification of chromosomes. Support your answer with a diagram showing the position of centromere on different types of chromosomes.
In a cell that is not dividing, the chromosomes are visible as a tangle of fine threads called
Chromosome having centromere in its middle is
When the centromere is situated in the middle of two equal arms of chromosomes, the chromosome is referred to as ______
A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is ______.
What is the feature of a metacentric chromosome?
What is refer-ed to as satellite chromosome?
Explain the functions of the nuclear pores.
