TLS Online TPP Program

#Question id: 1602


Following are some of the characteristics of MHC 1 and MHC 2 both , except 

#Section 2: General Biology
  1. they are expressed on all nucleated cells.

  2. they are glycosylated polypeptides with domain structure.

  3. they are express on B-cell

  4. they are involve in presentation of Antigen.

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TLS Online TPP Program

#Question id: 3335

#Section 3: Genetics, Cellular and Molecular Biology

Consider hypothetical populations that have arisen from the mixing of migrants from different sources: f(AA)- 0.30   f(Aa)- 0.0     f(aa)- 0.70 After one generation of random mating within population, what will be genotypic frequencies?

TLS Online TPP Program

#Question id: 3336

#Section 3: Genetics, Cellular and Molecular Biology

There are 4 alleles at a given locus in a diploid population and all alleles are equal abundant. What is the proportion of all homozygotes in the population?

TLS Online TPP Program

#Question id: 3337

#Section 3: Genetics, Cellular and Molecular Biology

Small populations are threatened by a least loss of genetic variability is due to

TLS Online TPP Program

#Question id: 3338

#Section 3: Genetics, Cellular and Molecular Biology

If the expected frequency of heterozygotes in a population (based on the Hardy–Weinberg law) is 0.4, but the observed frequency is 0.2, what is the inbreeding coefficient?

TLS Online TPP Program

#Question id: 3339

#Section 3: Genetics, Cellular and Molecular Biology

In a plant species, flower color locus either homozygous or heterozygous with genotype RR-red, Rr- pink and rr- white. The Proportional of pink flower in generation 0 is .50.  What is the level of remaining pink flower in a third generation of repeated selfing? 

TLS Online TPP Program

#Question id: 3340

#Section 3: Genetics, Cellular and Molecular Biology

Which of the following statements is NOT correct regarding effect of genetic drift?