SSC
BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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genes
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chromosomes
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genomes
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phenotype
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Detailed explanation-1: -Genes are contained in chromosomes, which are in the cell nucleus. A chromosome contains hundreds to thousands of genes.
Detailed explanation-2: -This DNA-protein complex is called chromatin, wherein the mass of protein and nucleic acid is nearly equal. Within cells, chromatin usually folds into characteristic formations called chromosomes. Each chromosome contains a single double-stranded piece of DNA along with the aforementioned packaging proteins.
Detailed explanation-3: -Each chromosome contains a single very long, linear DNA molecule. In the smallest human chromosomes this DNA molecule is composed of about 50 million nucleotide pairs; the largest chromosomes contain some 250 million nucleotide pairs. The diploid human genome is thus composed of 46 DNA molecules of 24 distinct types.