Biotechnology and its Applications — BIOLOGY STD 12 Science — Question

First hormone prepared by genetic engineering is

If a breeder has to evolve a disease resistant strain, what step should be taken first?

In Drosophila, gene for white eye mutation is also responsible for depigmentation of body parts. Thus a gene that controls several phenotypes is called

Sickle cell anaemia is due to

Species which occupy a similar ecological niche in similar communities occupying different biogeographical regions are

Ancestral amphibians were tetrapods that evolved during:

Ancestors of mammals belongs to

Dicot embryo consists of