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#Question id: 3266


One species mates at the season when daylight is increasing from 13 hours to 13 hours, 15 minutes; another species mates at the season when daylight is increasing from 14 hours to 14 hours, 15 minutes. The isolating mechanism is

#Unit 9. Evolution & Diversity of Life Forms
  1. Behavioral 

  2. gametic

  3. Habitat             

  4. Temporal

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TLS Online TPP Program

#Question id: 3503

#Unit 9. Evolution & Diversity of Life Forms

Following figure shown mate choice, following some statement is given

A) Male mate choice

B) More variance of matting success in female

C) Polygyny

D) More variance of matting success in male

E) Female mate choice

F) Polyandry

TLS Online TPP Program

#Question id: 3504

#Unit 9. Evolution & Diversity of Life Forms

Bird has a choice of four food resource with following character . assume all resource are equally abundant Following sequence of preference for resource ?

TLS Online TPP Program

#Question id: 3505

#Unit 9. Evolution & Diversity of Life Forms

Patterns of relatedness are different in hymenopterans, which are haplodiploid. Which of the following value of relatedness R1, R2, R3 and R4 respectively in figure?

TLS Online TPP Program

#Question id: 3506

#Unit 9. Evolution & Diversity of Life Forms

An altruist provides help worth 9 units of fitness to a recipient, at a personal cost of 2 unit of fitness. As per kin-selection theory, the minimum value of genetic relatedness between the actors and the recipients that is necessary to maintain altruism in the population is

TLS Online TPP Program

#Question id: 3507

#Unit 9. Evolution & Diversity of Life Forms

Rank the following from most general to most specific:

A. gametic isolation

B. reproductive isolating mechanism

C. pollen-stigma incompatibility

D. prezygotic isolating mechanism

TLS Online TPP Program

#Question id: 3508

#Unit 9. Evolution & Diversity of Life Forms

In these cases, females would indirect benefit by choosing the male that having which of following attribute 

a. can provide the best care

b. provide no care, but maintain territories

c. Large males, have probably been successful at living long, acquiring a lot of food and resisting parasites and disease

d. The long tail of the peacock