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.