GATE BT year:2023 PYQs & Answers — Page 6

Questions 51–60 of 65. Imported answers require independent review unless marked reviewed.

Topic practice 65 questionsPage 6 of 7

If there are three unrooted trees for four protein sequences, the number of rooted trees for the same number of sequences is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The number of different possible ways of forming five intramolecular disulfide bonds with ten cysteine residues of a protein is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

The following schematic diagram shows a chemostat with cell recycle

where F₀ and Fᵣ are the volumetric flow rates (in L.h

) of feed and recycle streams, respectively. X₁, X₀ and X are the cell concentrations (in g.L

) in the reactor, recycle-stream and product-stream, respectively. If

and X₁ is 7.3 g.L

, the value of X (in g.L

, rounded off to one decimal place) is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

An enzyme (E) catalyzes the biochemical reaction A → B with k₍cat₎ equal to 500 s

. If the initial reaction velocity (V₀) is 10 μM.s

at the total enzyme concentration [Eₜ] of 30 nM and substrate concentration [A] of 40 μM, the value of Kₘ (in μM) is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

DNA sample collected from an unidentified bacterial species (Y) contains 13% of adenine. The G+C content (in percentage) of Y is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

If 100 bp of a double-helical DNA weighs 1×10

gm and distance between two bp is 0.34 nm, the total amount of DNA (in mg, rounded off to one decimal place) required to stretch from Earth to Moon (assuming the distance between Earth and Moon to be 3,74,000 km) is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

A protein has three identical sites arranged at the vertices of an equilateral triangle. If one site is filled with a dye (donor), the measured quantum yield (

) is 0.5. Filling one site with a donor dye and a second site with an acceptor dye results in

of 0.25. The measured

of one site filled with donor and the other two sites filled with acceptor dye (rounded off to three decimal places) is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

, the value of

is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

, the value of

is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

If f(2) = 5 and (f(x))(f(x+1)) = 3 for all real values of x, the value of f(10) is __________.

You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer

GATE BT year:2023 PYQs

Question 51

Question 52

Question 53

Question 54

Question 55

Question 56

Question 57

Question 58

Question 59

Question 60