Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 8765
TLS Online TPP Program

#Question id: 11983

Which of the following is a behavioral pattern resulting from an ultimate cause?

#Unit 10. Ecological Principles
  1. A male robin attacks a red tennis ball because it resembles the breast of another male.
  2. A male robin attacks a red tennis ball because hormonal changes in spring increase its aggression.
  3. A male robin attacks a red tennis ball because a part of its brain is stimulated by red objects.
  4. A male robin attacks a red tennis ball because it confuses it with an encroaching male who will steal his territory.
More Questions
TLS Online TPP Program

#Question id: 29019

#Unit 9. Evolution & Diversity of Life Forms

If a population of fruit flies has an initial frequency of G equal to 0.3, calculate the proportionate contribution of genotypes to population from given data;
TLS Online TPP Program

#Question id: 29020

#Unit 9. Evolution & Diversity of Life Forms

If the given proportionate contribution of genotypes to the population is  p2WFF=0.04,  2pqWFS=0.16,  q2WSS=0.16, then what will be the Relative genotypic frequency after selection:
TLS Online TPP Program

#Question id: 29021

#Unit 9. Evolution & Diversity of Life Forms

A researcher measures mandible length of 500 individuals in a bird's species, given depicted graph of these population is represents;
TLS Online TPP Program

#Question id: 29022

#Unit 9. Evolution & Diversity of Life Forms

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 9. Evolution & Diversity of Life Forms

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 9. Evolution & Diversity of Life Forms

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