What is the relationship among DNA, a gene, and a chromosome?
A) A chromosome contains hundreds of genes, which are composed of DNA.
B) A chromosome contains hundreds of genes, which are composed of protein.
C) A gene contains hundreds of chromosomes, which are composed of protein.
D) A gene is composed of DNA, but there is no relationship to a chromosome.
E) A gene contains hundreds of chromosomes, which are composed of DNA.

Dear student,
Please find below the answer:

The correct option is (a). 

  • Chromosomes are long thread-like structures present in the nucleus of a cell which contains hereditary information of the cell (genes). 
  • Genes are the part of a chromosome and made up of DNA. It controls the appearance of a set of hereditary characteristics.
  • DNA is a chemical in the chromosomes which carries the hereditary characters in a coded form from one generation to the next generation.

Hope this clears your doubt.
Regards.

  • 1
hii.
i think a is correct option
  • 2
The answer is A
  • 1
Dear student,

The correct option is (a) as chromosome is composed of genes and genes have DNA.

Regards
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