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TLS Online TPP Program

#Question id: 4152

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.

#SCPH28 | Zoology

  1. 1, 2, 3, 4

  2. 1, 2, 4, 3

  3. 2, 1, 4, 3

  4. 2, 3, 1, 4

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TLS Online TPP Program

#Question id: 423

#I Life Science/ Life Sciences Group – I-V

The glycolytic pathway oxidizes glucose to two molecules of pyruvate and also produces a net of two molecules of ATP. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis. This is an example of ________.
TLS Online TPP Program

#Question id: 3660

#SCPH05 I Biotechnology

Which of the following is true for exchange of homologous regions between two DNA molecules?
TLS Online TPP Program

#Question id: 7300

#SCPH01 Biochemistry

Following genes regulate flowering, column I represents genes, column II represents transcription factor family and column III represents functions.

Column I

Column II

Column III

A. FLOWERING D (FD)

i. bZIP

a. Activates flowering

downstream of florigen

B. SUPPRESSOR OF

OVEREXPRESSION OF

CONSTANS1 (SOC1)

ii. MADS

b. Receptor for florigen

C. FLOWERING LOCUS C

 

c. Class E homeotic genes

D. SEPALLATA (SEP)

 

d. Floral repressor

 Which of the following is correct?
TLS Online TPP Program

#Question id: 14486

#SCPH01 Biochemistry

There are two bags, one of which contains 5 red and 7 white balls and the other 3 red and 12 white balls. A ball is to be drawn from one or other of the two bags, find the chance of drawing a red ball.
TLS Online TPP Program

#Question id: 8295

#SCPH05 I Biotechnology

Imagine that a phylogeny was developed for a group of mammals based on bone structure. Which of the following statements would be a reasonable prediction about a phylogeny for the same group of species based on similarities and differences in the structure of a particular enzyme?