Plant Breeding and Genetics – MCQs

396 questions. Click to practice.

Correct options are highlighted when revealed.

1.Reciprocal recurrent selection works best under which genetic conditions?

2.What is the fertility outcome of a site-specific cross between Avena sativa and A. busantus?

3.What is the required germination percentage for foundation groundnut seeds?

4.Which method is effective for promoting seed germination in typhoin watermelon?

5.In which species was gametophytic self-incompatibility initially discovered?

6.What is the term for a gene that increases the mutation rate of another gene within the same genome?

7.Who originally introduced the concepts of vertical resistance and horizontal resistance?

8.Which plant family includes the largest number of vegetable crops?

9.What is the primary use of Leucaena leucocephala?

10.Who was the first to identify DNA as the carrier of genetic information?

11.Under which condition do allele frequencies in a population stay stable over time?

12.Which is the smallest segment of DNA that can participate in crossing over and recombination?

13.Which gene is responsible for producing the repressor protein?

14.What conditions must be met for the Hardy-Weinberg principle to be applicable to a genetic population?

15.What is true about the quantity of DNA in diploid cells?

16.Where is ATP primarily synthesized within a cell?

17.Which cellular component is commonly referred to as the "Suicide bag"?

18.What type of bond connects the strands of a DNA molecule?

19.Which of the following nitrogenous bases is found in RNA?

20.A mutation refers to an alteration in which of the following?

Plant Breeding and Genetics – MCQs | PakQuizHub