TLS Online TPP Program

#Question id: 23131


How the minimum no. of proteome can be estimated

#Unit 2. Cellular Organization
  1. By the no. of exons
  2. By the no. of introns
  3. By the no. of pseudogenes
  4. By the number of types of genes
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TLS Online TPP Program

#Question id: 12098

#Unit 10. Ecological Principles

The herbaceous plant Achillea lanulosa is widespread in the Northern Hemisphere. Phenotypic variation in the species has been extensively studied along an altitudinal gradient from sea level to over 3,000 meters. In California there is conspicuous variation in  height; alpine plants are only several centimeters tall  while  those in  the San Joaquin Valley may reach a height of 1.8 meters. Adaptation to different local environments also results in variation in physiological processes such as photosynthetic rate, resistance to cold, and the timing of dormancy.

The morphological variation shown by Achillea lanulosa illustrates

TLS Online TPP Program

#Question id: 203

#Unit 1. Molecules and their Interaction Relevant to Biology

Which of the following two-electron transfer reactions can be linked to one-electron transfer reactions by

A) formation of semiquinones.

B) a [Fe-S] cluster.

C) NADH and NADPH.

TLS Online TPP Program

#Question id: 23583

#Unit 13. Methods in Biology

Insert DNA may be produced by

TLS Online TPP Program

#Question id: 2350

#Unit 2. Cellular Organization

The maximum size of cells is _____

TLS Online TPP Program

#Question id: 5281

#Unit 8. Inheritance Biology

In the mating Hfr Strs met+ his+ leu+ trp+ Ala+   X F- Strres met- his- leu- trp- Ala-. At regular interval time, the mating cells are interrupted and the cell suspensions plated on four different growth media with streptomycin. The amino acids in the growth media and the number of colonies observed on each are as follows:

Interrupted time

Composition of media

Growth

His

Leu

Ala

Trp

Met

2   min

+

-

+

+

+

Yes

10 min

+

-

-

+

+

Yes

12 min

+

-

-

+

-

No

15 min

+

-

-

-

+

Yes

20 min

-

-

-

-

+

Yes

What is the order of transfer of the genes?