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

What are protooncogenes?

Do you think Mendel's laws of inheritance would have been different, if the characters he chose were located on the same chromosome? Why?

When are polar bodies formed in female ovary?

What does 'Restriction' refer to in the Restriction endonucleases?

What is the approximate value of net primary productivity of the biosphere?

What are germ pores?

Expand MMR and IMR.

Due to an error during transcription, ATG of DNA formed UAG in mRNA.
What would happen to the polypeptide chain during translation due to this changed mRNA?

Name the commonly used vector for transformation in plant cells.

A mother of one–year old daughter wanted to space her second child. Her doctor suggested CuT. Explain its contraceptive actions.