Strategies for Enhancement in Food Reproduction — BIOLOGY STD 12 Science — Question

Write the criteria for choosing male and female cattle for inbreeding.

Tell about other methods of introducing foreign DNA into host cells.

What are linked genes? How can a pair of linked genes be identified?

Give three important aspects of Biodiversity.

1. Name the scientist who suggested that the genetic code should be made of a combination of three nucleotides.
2. Explain the basis on which he arrived at this conclusion.

The microscopic pollen grains of the past are obtained as fossils. Which compound makes this possible?

Which part in the male reproductive system stores sperms?

When a foreign DNA is introduced into an organism, how is it maintained in the host and how is it transferred to the progeny of the organism?

What is meant by semi-conservative nature of DNA replication?

What would be the impact on the environment around a thermal power plant if its electrostatic precipitator stops functioning? Give a reason.