STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question

Which era is dubbed as the age of prokaryotic microbes?

Which one of the following conditions of the zygotic cell will produce a normal human female child?

In case of a couple where the male is having a very low sperm count, which technique will be suitable for fertilisation?

Ozone saves the biosphere by absorbing the high energy radiation called

Stanley L. Miller conducted experiments before 1953 on prebiotic earth environment using special apparatus. The primary surprising products wereStanley L. Miller conducted experiments before 1953 on prebiotic earth environment using special apparatus. The primary surprising products were:

First dinosaurs and first egg-laying mammals were originated in

Which bacteria is more useful for gene cloning in higher plants?

The pollination by ........ is called as zoophily.