EMBRYOLOGY
CHROMOSOMES AND CELL DIVISIONS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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nucleus
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chromatin
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chromatid
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chromosome
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Detailed explanation-1: -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.
Detailed explanation-2: -Chromosome versus Chromatid A chromosome is the condensed form of DNA which is visible during mitosis (via microscopy) As the DNA is replicated during the S phase of interphase, the chromosome will initially contain two identical DNA strands.
Detailed explanation-3: -During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes.