Some given statements about Auxin signalling pathways are listed;

a) The auxin receptor is composed of two proteins: the SCF complex component TIR1 and the repressor protein AUX/IAA

b) The binding of auxin to its receptor complex initiates ubiquitin-dependent degradation of the AUX/ IAA repressor protein by the 26S proteasome 

c) TIR1 recruits AUX/ IAA proteins to the SCFTIR1  complex in an auxin-independent manner

d) AUX/IAA proteins are ubiquitinated by the E3 ligase activity of the SCFTIR1 complex, which marks the protein for destruction by the 26S proteasome

Which of the following is correct explanation of Auxin signalling pathways?

#Question id: 3314

#Unit 9. Evolution & Diversity of Life Forms

The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 14 gm to 16 gm. Which of the following natural selection operate on this species?

#Question id: 3315

#Unit 9. Evolution & Diversity of Life Forms

Which one of the following statements is TRUE for Negative-frequency dependent selection?

#Question id: 3316

#Unit 9. Evolution & Diversity of Life Forms

There are two population A (N = 500) and B (N=50). Due to genetic drift, both populations will lose its genetic diversity in a generation. Such losses become magnified over many generations. After 20 generations, what will be lose its original variation?

#Question id: 3317

#Unit 9. Evolution & Diversity of Life Forms

Which of the following statements is NOT correct regarding effect of genetic drift?

#Question id: 3318

#Unit 9. Evolution & Diversity of Life Forms

When members of a metal- torerant and metal sensitive species that initially occupied the same habitat within the same range diverge into two species due to starting to show a change in their flowering season. This process known as

#Question id: 3319

#Unit 9. Evolution & Diversity of Life Forms

What will be the approximate effective population size in a panmictic population of 240 with 200 females and 40 polygamous males?