TLS Online TPP Program

#Question id: 1604


Many viruses produce a protein immunoevasin that interferes with antigen presentation by MHC class I molecules. The immunoevasin interfere MHC presentation by

#Section 2: General Biology
  1. Block peptide transport to TAP

  2. Inhibiting E3 ubiquitin ligase activity

  3. Block tapasin function

  4. All of the above

More Questions
TLS Online TPP Program

#Question id: 3312

#Section 3: Genetics, Cellular and Molecular Biology

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

TLS Online TPP Program

#Question id: 3313

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statement is incorrect for the process of speciation?

TLS Online TPP Program

#Question id: 3314

#Section 3: Genetics, Cellular and Molecular Biology

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

TLS Online TPP Program

#Question id: 3315

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following statements is TRUE for Negative-frequency dependent selection?

TLS Online TPP Program

#Question id: 3316

#Section 3: Genetics, Cellular and Molecular Biology

There are two population A (N = 500) and B (N=50). Due to genetic drift, both populations will lose its genetic diversity in a generation. Such losses become magnified over many generations. After 20 generations, what will be lose its original variation?

TLS Online TPP Program

#Question id: 3317

#Section 3: Genetics, Cellular and Molecular Biology

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