GENETICS AND EVOLUTION
GENETIC BASIS OF INHERITANCE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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an allele
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a gene
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a chromosome
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a phenotype
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Detailed explanation-1: -In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Detailed explanation-2: -Chromosome is a condensed form of DNA.
Detailed explanation-3: -Chromatin is a complex of DNA and proteins that forms chromosomes within the nucleus of eukaryotic cells. Nuclear DNA does not appear in free linear strands; it is highly condensed and wrapped around nuclear proteins in order to fit inside the nucleus. Chromatin exists in two forms.
Detailed explanation-4: -Reason: Heterochromatins are those regions of the chromosome that remain condensed during interphase and rest of the non-condensed chromosomes are called as euchromatin. Q. In which stage of cell division chromosomes are most condensed?