During the biosynthesis of brassinosteroid derived from the sterol campesterol follows two types of the pathway

i) Late C-6 oxidation pathway

ii) Early C-6 oxidation pathway

follows  the different reaction performing in each  pathways such as,

a) Campesterol → Campestanol →6-Deoxoteasterone→ Castasterone→Teasterone →Brassinolide

b) Campesterol → 6-Oxocampestanol →Cathasterone →Teasterone → Castasterone →Brassinolide

c) Campesterol → Campestanol →6-Deoxocathasterone →6-Deoxoteasterone → Castasterone →Brassinolide

Find the correct combination of the each oxidation pathway with its performing sequences;

TLS Online TPP Program

#Question id: 29022

#Unit 11. Evolution and Behavior

In a given population(A) W11=W12>W22 and  Population (B) W11=W12<W22 , the natural selection will favour;

I- Population A showing directional selection against recessive allele A2, A1 fitness increases

II-Population B showing directional selection against dominant allele A1, A2 fitness increases

III- natural selection rapidly favour population A than population B

TLS Online TPP Program

#Question id: 29023

#Unit 11. Evolution and Behavior

Magnitude of genetic drift is dependent on two factor such as frequency of allele as well as population size, which of the following is correct?

a) decrease population size leads to increasing the magnitude of genetic drift

b) maximum magnitude are seeing whenever p=q

c) maximum magnitude are seeing whenever p>q

d) increasing population size also increasing the magnitude of genetic drift

TLS Online TPP Program

#Question id: 29024

#Unit 11. Evolution and Behavior

Which of the following factor does not determine the effective population size?

a- Variation between individual in reproduction success

b- Fluctuation in population size

c- non-random mating 

d- Sex ratio

e- age structure of the population

TLS Online TPP Program

#Question id: 29025

#Unit 11. Evolution and Behavior

In a given population of male and female will be 35 and 10. What is the effective population size (ne) for this population?

TLS Online TPP Program

#Question id: 29026

#Unit 11. Evolution and Behavior

Caused of behaviour are of two types proximate cause and ultimate cause. Given statements about these causes, which of the following is not true?

TLS Online TPP Program

#Question id: 29027

#Unit 11. Evolution and Behavior

Which of the following is not the characteristics of fixed action pattern?