Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 29775
TLS Online TPP Program

#Question id: 3882

The reverse transcriptase of an animal RNA virus catalyzes:

#Unit 3. Fundamental Processes

  1. degradation of the RNA strand in a DNA-RNA hybrid.

  2. insertion of the viral genome into a chromosome of the host (animal) cell.

  3. RNA formation in the 3'  5' direction.

  4. RNA synthesis, but not DNA synthesis.

More Questions
TLS Online TPP Program

#Question id: 18013

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get At least one correct answer.
TLS Online TPP Program

#Question id: 18014

#Unit 13. Methods in Biology

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get Atmost three correct answers
TLS Online TPP Program

#Question id: 18072

#Unit 11. Evolution and Behavior

First invertebrates insects fossil appeared in which of the following geological ages?
a) Mesozoic b) Jurassic
c) Paleozoic d) Devonian
e) Permian f) Pennsylvanian
Which of the following combinations give the best answer?
TLS Online TPP Program

#Question id: 18073

#Unit 11. Evolution and Behavior

During which geological period was there an first definite evidence of land plants and algae dominant of many plants?
TLS Online TPP Program

#Question id: 18081

#Unit 8. Inheritance Biology

The interaction of selection and inbreeding in determining the incidence of autosomal recessive diseases. Consider a gene in which recessive mutations occur at a rate of 10-5. Assume a selective disadvantage S of 0.4 in homozygotes for the recessive allele. What is the frequency of the recessive allele (q). And calculate the incidence of the disease. Assume random mating.
TLS Online TPP Program

#Question id: 18082

#Unit 8. Inheritance Biology

The interaction of selection and inbreeding in determining the incidence of autosomal recessive diseases. Consider a gene in which recessive mutations occur at a rate of 10-5. Assume a selective disadvantage S of 0.4 in homozygotes for the recessive allele. Now assume that, for thousands of generations, 10% of all children have been products of first-cousin matings (the remaining 90% being products of random matings). Calculate the steady-state value of q. Also calculate the incidence of the disease at steady state.