For the expression of traits genes provide only the potentiality and the environment provides the opportunity. Comment on the veracity of the statement.

How are alleles of particular gene differ from each other? Explain its significance.

In a monohybrid cross of plants with red and white flowered plants, Mendel got only red flowered plants. On self-pollinating these F1 plants got both red and white flowered plants in 3:1 ratio. Explain the basis of using RR and rr symbols to represent the genotype of plants of parental generation.

A, B, D are three independently assorting genes with their recessive alleles a, b, d, respectively. A cross was made between individuals of Aa bb DD genotype with aa bb dd. Find out the type of genotypes of the offspring produced.

In our society a woman is often blamed for not bearing male child. Do you think it is right? Justify.