TLS Online TPP Program

#Question id: 7700


The legless condition that is observed in several groups of extant reptiles is the result of ________.

#Section 2: Evolution
  1. their common ancestor having been legless
  2. a shared adaptation to an arboreal (living in trees) lifestyle
  3. several instances of the legless condition arising independently of each other
  4. individual lizards adapting to a fossorial (living in burrows) lifestyle during their lifetimes
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TLS Online TPP Program

#Question id: 3306

#Section 2: Evolution

Death feigning behaviour (i.e., pretending to be dead when attacked) is found in snakes and millipedes. This similarity in behaviour between snakes and millipedes is an example of

TLS Online TPP Program

#Question id: 3307

#Section 2: Evolution

Which of the following conditions is not necessarily be fulfilled to trigger natural selection

TLS Online TPP Program

#Question id: 3308

#Section 2: Evolution

Consider a single locus with 3 alleles which are at Hardy- Weinberg equilibrium. If the frequency of all homozygous genotypes is 0.54, what is the frequency of allele in population?

TLS Online TPP Program

#Question id: 3309

#Section 2: Evolution

In a given population, 128 out of every 400 people has a carrier for recessive allele b that caused cancer in homozygous condition,  Assuming the population is in Hardy- Weinberg equilibrium, which of the following is the expected frequency of allele B and b in population respectively?

TLS Online TPP Program

#Question id: 3311

#Section 2: Evolution

Consider a diploid population at Hardy-Weinberg equilibrium. For a locus with two alleles, the frequency of the A1A1 genotype is 0.01) The frequency of A2A2 is

TLS Online TPP Program

#Question id: 3312

#Section 2: Evolution

Hardy-Weinberg equilibrium, the frequencies of the two alleles A1 and A2 is 0.4 and 0.6. When you consider A2 is dominant allele of genetic disorder. The frequency of defected individuals, in population size 1000 is