The unicellular organisms which reproduce by binary fission are considered immortal. Justify

Why are the offsprings of oviparous animal at a greater risk as compared to offsprings of viviparous organisms?

What is inhibin? State its functions

What is the composition of semen?

Define gametogenesis.

Give a schematic representation of spermatogenesis and oogenesis in humans.

What are the strategies to be implemented in India to attain total reproductive health?

Describe the major STDs and their symptoms.

Differentiate Intersexes from Supersexes

How is sex determined in human beings?

Brief about female heterogamety.

Distinguish between structural gene, regulatory gene and operator gene

Why the human genome project is called a mega project?

Why tRNA is called an adapter molecule?

Name the anticodon required to recognize the following codons: AAU, CGA, UAU, and GCA.

Darwin's finches and Australian marsupials are suitable examples of adaptive radiation – Justify the statement

How does Mutation theory of De Vries differ from Lamarck and Darwin’s view in the origin of new species.

Rearrange the descent in human evolution
Austrolopithecus → Homo erectus → Homo sapiens → Ramapithecus → Homo habilis.

Explain the structure of immunoglobulin with suitable diagram.

What is vaccine? What are its types?

Write the key features of organic farming.

What are transgenic animals? Give examples

Explain how ADA deficiency can be corrected

Differentiate between Somatic cell gene therapy and germline gene therapy

One of the applications of biotechnology is ‘gene therapy” to treat a person born with a hereditary disease
i) What does “gene therapy” mean?
ii) Name the hereditary disease for which the first clinical gene therapy was used.
iii) Mention the steps involved in gene therapy to treat this disease.