Life Science- CSIR NET, GATE, SET, DHR BRET, BARC & PSC
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22. High doses of caffeine can interfere with the DNA replication checkpoint mechanism in mammalian cells. Assume that a cup of coffee (200 ml) contains 100 mg of caffeine (mol wt. 200 g/ mol). How many cups of coffee will contain 10 mmole of caffeine?
Anonymous Poll
34%
20
34%
52
23%
12
9%
4
Carboxypeptidase is a single polypeptide of 307 amino acids and contains two essential amino acids Arg 145 and Glu 270 in its active site bearing a single alpha helix. If carboxypeptidase is a perfect alpha helix, the distance between the two amino acids
Anonymous Poll
38%
187.5 Å
36%
347 Å
23%
600 Å
3%
600 Å
A preparation of mitochondrial extract contains all soluble enzymes of the matrix but the dialysis step of extract preparation presumably has led the loss of molecular weight cofactors. Which cofactors would be needed oxidation step of acetyl CoA to CO2?
Anonymous Poll
7%
FAD alone
23%
NADP alone
39%
NAD or NADH
30%
both NAD and FAD
Are you planning to participate in our upcoming All India Scholarship Test on December 2nd and 3rd?"
Anonymous Poll
39%
Yes, I'm excited to take part!
43%
I'm considering it; need more details.
17%
Not sure yet, but it sounds interesting.
🏆1
26. A fluorescently labelled plasma membrane protein within a cell was monitored under a microscope. If the cells were treated with Brefeldin A, an inhibitor of ER to golgi transport, the membrane protein would be mainly found in
Anonymous Poll
29%
plasma membrane
27%
golgi stacks
37%
ER
7%
lysosomes
A researcher has isolated a temperature sensitive cell division mutant in S. cerevisiae. At the non permissive temperature, the mutant undergoes mitosis but the daughter cells show aneuploidy. Mutation in which following not directly lead to aneuploidy?
Anonymous Poll
29%
G1/S checkpoint
35%
spindle assembly checkpoint
25%
G2/M checkpoint
12%
cyclin B1/CDK complex
Can you guess what 'Prime' signifies in our upcoming launch?"
Anonymous Poll
52%
YouTube Series
36%
Test Series
11%
Batch Name