Natural Selection can maintain a polymorphism when

a. heterozygote is fitter than the homozygote

b. Fitnesses of genotypes are negatively frequency dependent.

c. Fitnesses of genotypes are positive frequency dependent.

d. One homozygote is fitter than the heterozygote

TLS Online TPP Program

#Question id: 3882

#Unit 3. Fundamental Processes

The reverse transcriptase of an animal RNA virus catalyzes:

TLS Online TPP Program

#Question id: 3883

#Unit 3. Fundamental Processes

Which of the following is correct about reverse transcriptase:

TLS Online TPP Program

#Question id: 3884

#Unit 3. Fundamental Processes

Compared with DNA polymerase, reverse transcriptase: 

TLS Online TPP Program

#Question id: 3885

#Unit 3. Fundamental Processes

AZT (3'-azido-2',3'-dideoxythymidine), used to treat HIV infection, acts in HIV-infected cells by:

TLS Online TPP Program

#Question id: 3886

#Unit 3. Fundamental Processes

Which one of the following statements about the reverse transcriptases of retroviruses and the RNA replicases of other single-stranded RNA viruses, such as R17 and influenza virus, is correct?

TLS Online TPP Program

#Question id: 3887

#Unit 3. Fundamental Processes

Aptamers are