TLS Online TPP Program

#Question id: 4128


Which of the following statements about tRNA molecules is false?

#SCPH01 Biochemistry
  1. A, C, G, and U are the only bases present in the molecule.

  2. Although composed of a single strand of RNA, each molecule contains several short, double-helical regions.

  3. Any given tRNA will accept only one specific amino acid.

  4. The amino acid attachment is always to an A nucleotide at the 3' end of the molecule.

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TLS Online TPP Program

#Question id: 2127

#SCPH06 I Botany

The fluidity of the lipid side chains in the interior of a bilayer is generally increased by:

TLS Online TPP Program

#Question id: 14136

#SCPH05 I Biotechnology

Which of the following statement is incorrect about global alignment? 
(A) Global alignment is based on the Needleman–Wunsch algorithm.
(B) In Global alignment algorithm, an optimal alignment is obtained over the entire lengths of the two sequences.
(C) It is only suitable for aligning two closely related sequences that are of the same length.
(D) GAP is a web-based pairwise global alignment program.

TLS Online TPP Program

#Question id: 4145

#SCPH01 Biochemistry

Steriod hormone response elements (HREs) are _ , which, when bound to _, alter gene expression at the level of _.

TLS Online TPP Program

#Question id: 10511

#SCPH05 I Biotechnology

Which type of pumps inhibits digitoxin in the membranes of heart cells, leading to increased myocardial contraction?

TLS Online TPP Program

#Question id: 10286

#SCPH05 I Biotechnology

The enzyme aldolase, catalyzes a reversible aldol condensation, Fructose 1,6-bisphosphate is cleaved to yield two different triose phosphates, glyceraldehyde 3-phosphate, an aldose, and dihydroxyacetone phosphate, a ketose. There are two classes of aldolases such as;

A) Class I aldolases

B) Class II aldolases

i) Found in animals and plants

ii) Found in in fungi and bacteria

iii) formation of protonated Schiff base on enzyme and its active site contain lysine residue

iv) do not form the Schiff base intermediate and a zinc ion at the active site is coordinated with the carbonyl oxygen at C-2

In which of the following option is the given enzyme with its correct statements?