Q. 24.1( 79 Votes )
A trait can be only inherited when it brings a change in genes present in the gametes of an organism. Changes in non-reproductive tissues cannot be passed on to DNA of germ cells. Therefore traits acquired during lifetime of an individual are not inherited by the offspring because they are changes in somatic cells and not in germ cells.
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The two versions of a trait (character) which are brought in by the male and female gametes are situated onNCERT - Science Exemplar
Select the statements that describe characteristics of genes
i. genes are specific sequence of bases in a DNA molecule
ii. a gene does not code for proteins
iii. in individuals of a given species, a specific gene is located on a particular chromosome
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(a) E is the gene for brown eye color and e is the gene for blue eye color. Which gene is
(i) Recessive, and
(b) Both father and mother have the genes Ee in their cells. What color are their eyes?
(c) Which combination of genes in the zygote will produce children with blue eyes?
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