Biotechnology: Principles and Processes — BIOLOGY STD 12 Science — Question

Name the following: Growth inhibitors of plants.

Enlist the kind of water available in soil environment.

In a flower, the megaspore mother cell of an ovule forms megaspores by mitosis. If one of these megaspores develops into the embryo sac, what will be the ploidy of its (eight) nuclei?

Why are yeasts used extensively for functional expression of eukaryotic genes?

Plant stress hormone.

Which mutation can result in insertion or deletion of amino acids, but reading frame remains unaltered?

Name the RNA that carries amino acid sequence information.

What is the use of gluconic acid?

Give an example of a human disorder that is caused due to a single gene mutation.

Although AIDS is a fluid transmitted disease, it is considered as a STD. Give reason for it.