TLS Online TPP Program

#Question id: 14835


There are three main ways in which inducing signals may be passed between cells EXCEPT

#Unit 5. Developmental Biology
  1. the signal is transmitted through the extracellular space, usually by means of a secreted diffusible molecule
  2. cells may interact directly with each other by means of molecules located on their surface.
  3. the signal may pass from cell to cell directly through gap junctions
  4. If the signal involves small molecules it may pass indirectly from cell to cell through gap junctions in the plasma membrane
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TLS Online TPP Program

#Question id: 29018

#Unit 11. Evolution and Behavior

The average numbers of offspring produced by three genotypes are: A1A1=6, A1A2=3, A2A2=2, What will be the selection coefficient of theses allele?

TLS Online TPP Program

#Question id: 29019

#Unit 11. Evolution and Behavior

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 11. Evolution and Behavior

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 11. Evolution and Behavior

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 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