TLS Online TPP Program

#Question id: 11635


Given below, is the result of a complementation test for eight independent mutants (1 to 8).



#Unit 8. Inheritance Biology
  1. two cistrons mutation , 1,3, 4, 6, 7 and 8  represents the one cistron , 2 and 5 represent the second cistron
  2. three cistron mutation will be found  1,3, 4 and 8 represents the one cistron,  6 and 7 represent the second cistron and 2 and 5 represents the third cistron.
  3. the two cistron mutation  1,3,4,6,7 and 8 represent the one cistron while 2 and 5 represent the second cistron in a ordered as  1-3-5-2-4-6-8-7.
  4. All mutations belong to a two cistron, but their order cannot be determined.

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TLS Online TPP Program

#Question id: 3254

#Unit 11. Evolution and Behavior

Consider a single locus with 2 alleles which are at Hardy-Weinberg equilibrium. If the frequency of the heterozygous genotypes is 0.42, what is the frequency of one homozygote in the population?

TLS Online TPP Program

#Question id: 3255

#Unit 11. Evolution and Behavior

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 16 gm to 24 gm. Which of the following natural selection operate on this species?

TLS Online TPP Program

#Question id: 3256

#Unit 11. Evolution and Behavior

There are three alleles, A1, A2, and A3, whose frequencies are equal abundance. According the Hardy-Weinberg equilibrium

TLS Online TPP Program

#Question id: 3257

#Unit 11. Evolution and Behavior

Which of the following statements about evolution is NOT true?

TLS Online TPP Program

#Question id: 3258

#Unit 11. Evolution and Behavior

Which of the following incorrect about genetic drift

TLS Online TPP Program

#Question id: 3259

#Unit 11. Evolution and Behavior

Different type of evolution leads to group of taxon in following three manners

A- group of taxon whose member have descended from common ancestor

B- when two lineages convergently  evolve similar character states form  groups that are recognized by pheneticists

c. taxon that include most recent ancestor but not all of its descendent