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#Question id: 3292


Which of the following is correct observation?

#Section 3: Genetics, Cellular and Molecular Biology
  1. Niche partitioning allows for selection of differential patterns of resource usage, which can drive speciation

  2. This narrowing of phenotypes causes a reduction in genetic diversity in a population

  3. Extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype

  4. The phenotypes grade become wide and caused increases the genetic diversity in a population

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#Question id: 3362

#Section 3: Genetics, Cellular and Molecular Biology

The Hardy-Wienberg principle comes from considering what happens when Medelian genes act on population. The model predicts that there will be no change in allele frequencies when

TLS Online TPP Program

#Question id: 3363

#Section 3: Genetics, Cellular and Molecular Biology

An autosomal recessive condition affects 1 newborn in 100 in a random mating population without any disruptive acting force. What is the approximate expected frequency of carriers in this population?

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#Question id: 3364

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following equations represents the corresponding equilibrium for a locus with three alleles p, q and r of diploid individuals? (P, Q and R represent the frequencies of p, q and r, respectively)

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#Question id: 3368

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

The origin of a new plant species by hybridization, coupled with accidents during nuclear division, is an example of

TLS Online TPP Program

#Question id: 3509

#Section 3: Genetics, Cellular and Molecular Biology

Principle of independent assortment apply for those gene that is

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#Question id: 3510

#Section 3: Genetics, Cellular and Molecular Biology

Assume that the trihybrid cross AA BB RR X aa bb rr is made in a plant species in. What proportion of F2 progeny would be expected to be homozygous for all three genes when independently assort?