CSIR NET 2022| Revision Booster Life Science (23 January)

Following column is given:

Choose the option with the correct match.

Monomeric G protein family which regulates the growth of cell is known as:

In cell cycle a protein structure at centromeric region of chromosome which interact with chromatin and is involved in attachment of microtubule is:

In which phase of cell cycle chromatid is termed as chromosomes?

Which of the following receptor is activated by Lin-39 which induces vulva formation in C. elegans?

ABC model system was given which of the following scientists?

4000 horses were dropped off in an earth like planet with presence of abundant vegetation. After a million years 400 individuals of different species were observed.

The different species evolved due to:

Methanogens are obligate anaerobes that produce methane as a by-product of obtaining energy. They live in muds, swamps, guts of cows, humans, termites and other animals. Their DNA is associated with histone proteins and ribosome activity is not inhibited by streptomycin. These are:

Given below are some statements about biological nitrogen fixation –

P. Acquistion of nitrogen from atmosphere requires the breaking of an exceptionally stable triple covalent bond between two nitrogen atoms to produce ammonia and nitrate.

Q. Prokaryotic organisms fix molecular nitrogen fixing organisms or diazotrophs.

R. It generates atleast one of hydrogen and 2 moles of ammonia.

Which statement(s) is correct?

What is the alternative term used for the nutrient cycle?