TLS Online TPP Program

#Question id: 1525


Following statements are regarding to chromatin remodelling factors SWI/SNF complexes. Which one of them is incorrect?

#Unit 4. Cell Communication and Cell Signaling
  1. SWI/SNF complexes large and diverse multiprotein complexes, which have an ATP-dependent helicase at their core, often control histone modification and chromatin remodeling.

  2. SWI/SNF complexes can cause changes in the positions or structures of nucleosomes, making genes accessible or inaccessible to DNA-binding proteins that control transcription.

  3. SWI/SNF plays a role in repressing the expression of E2F genes, thereby inhibiting progression through the cell cycle.

  4. Loss of SWI/SNF function, just like gain of Rb function, can lead to overgrowth and tumor formation.

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TLS Online TPP Program

#Question id: 3414

#Unit 11. Evolution and Behavior

The given below is the graphical representation of the changes in morphological features over a period of the geological time scale, where population A accumulates heritable morphological features and give rise to distinct species B. Population B splits in to a distinct species B1 and B2 Which of the following lineage represent the pattern of speciation by cladogenesis?

TLS Online TPP Program

#Question id: 3413

#Unit 11. Evolution and Behavior

 Following certain conditions is present in a population?

A- Large Population

B- Each locus carries two allele 

C- Sexual selection 

D- Frequency dependent selection  

E- No linkage between genes

Which of the following above condition allowed to validity of Hardy- Weinberg Prediction?

TLS Online TPP Program

#Question id: 3412

#Unit 11. Evolution and Behavior

What will be frequency of inbreeding coefficient between G and H?

TLS Online TPP Program

#Question id: 3411

#Unit 11. Evolution and Behavior

The frequencies of two allele’s p and q for a gene locus in a population are 0.8 and 0.2, respectively. Population show inbreeding with value of F is .25, Assume that the population is infinitely large and no other evolutionary force is acting. The heterozygote frequency will be 

TLS Online TPP Program

#Question id: 3410

#Unit 11. Evolution and Behavior

1200 Birds population are present around costal area with allelic frequency of M1 .60 and M2 .40. During rainy time 200 birds come from nearest forest which has .30 frequency of M1 and .70 of M2 allele.  What will be allelic frequency of M2 in their recipient population of costal area?

TLS Online TPP Program

#Question id: 3409

#Unit 11. Evolution and Behavior

All genetic drift arises from sampling error, but there are several different ways in which sampling error can arise as a following

a. Reduced population size

b. Founder effect

c. Genetic bottleneck

d. Mate choice

Which of the following above way cause sampling error in succeed generation?