Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

 Name the chromosome that has

1. The maximum/most number of genes.
2. The least number of genes.

What is the main purpose of the ex situ Conservation Method?

What does 'Red' indicate in the IUCN Red list (2004)?

What are the major divisions of history of earth?

Why is it that transcription and translation can be coupled in prokaryotic cells but not in eukaryotic cells?

Define mineralisation.

Name the two forms of reservoirs of carbon that regulate the ecosystem carbon cycle.

In the given population growth curve.

1. What is the status of food and space in the curves (a) and (b)?
2. In the absence of the predators, which curve (a) or (b) would appropriately depict the prey population?

Why is the period between day 10 and 17 of the menstrual cycle, called 'fertile period"?

What general term is given to the method in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination?