Evolution — BIOLOGY STD 12 Science — Question

Name some microbes which are cultivated as single cell protein.

What do you call the kind of mutation in which a single base is added to a base strand?

Name the Indian hot spots that extend into other countries.

What is cleavage?

Why is it not possible for an alien DNA to become part of chromosome anywhere along its length and replicate normally?

In a dihybird, cross, when would the proportion of parental gene combinations be much higher than non-parental types, as experimentally shown by Morgan and his group?

Define multiple allelism.

Name the following : Three examples of animals that are now extinct due to over-exploitation

Name the vegetative propagules in:

1. Potato, and.
2. Pistia.

Name two greenhouse gases produced by anaerobic microbes.