Give the pair of contrasting traits of the following characters in pea plant and mention which is dominant and recessive (i) yellow seed (ii) round seed.

What are homologous structures? Give an example. Is it necessary that homologous structures always have a common ancestor?

Does the occurrence of diversity of animals on earth suggest their diverse ancestry also? Discuss this point in the light of evolution.

Why did Mendel choose pea plant for his experiments?

A woman has only daughters. Analyse the situation genetically and provide a suitable explanation.