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CSIR NET Weekend Booster Quiz 2022 | Life Science | 6 November

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Question 1

In a type I hypersensitivity-mediated asthmatic response, which one of the following is thought to contribute significantly to the prolonged bronchospasm and build-up mucous seen in asthmatics?

Question 2

Which is FALSE about conditions on the Earth 3.8 billion years ago.

Question 3

Which of the dashed line boxes is a polyphyletic group?

Question 4

Given below is a list of some proteins known to be associated with apoptosis, their subcellular localization (but not in correct order) and possible role in apoptosis.

Choose the right combination which matches the proteins with their correct localization and role in apoptosis.

Question 5

There are number of specific T cell surface molecules involved in various functions of adaptive immune response, Column X represents a list of T cell surface molecules and Column Y with the possible functional characteristics:


Which of the following option has all correct matches?

Question 6

Three species M, N and O when grown independently in a laboratory showed typical logistic growth curves. However, when grown in pairs, the following growth curves were observed.


What interpretation regarding the interspecific relationship between M, N and O can be deduced from the above observations?


Question 7

The slope and intercept obtained from velocity and substrate of an enzymes catalyzed reaction are 1000 and 50 X 105 respectively. The Michaelis and Menten constant of the enzyme for the reaction is

Question 8


Match the above columns involving plant hormones and their signaling pathways:

Question 9

An integral membrane protein (P) has been identified as a cell surface protein of hepatocytes and is assigned to bind to hepatitis B virus (HBV) and promote its entry into cytosol. Upon binding to HBV particles, the C-terminal of P interacts with F-actin in the cytosol and in turn, helps in the entry of the HBV particles. P was successfully cloned and expressed in animal cells in culture wherein its N- terminal is exposed on the surface while the C-terminal resides in the cytosol. The recombinant protein P so expressed retains its complete structure and function. From the list of experiments given below, which one of the experiments will you perform to show that C- terminal of the protein P via interacting with F-actin helps in HBV entry?

Question 10

Acetylcholine is catalyzed by AChE and gives a yellow colour in reaction systemn. The enzyme turnover rate is 300 units/sec. How long will napthyl acetate take to break naphthol.
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Aug 24CSIR NET & SET