Free Gene Linkage and Crossing Over MCQs with Answers
11 Gene Linkage and Crossing Over MCQs from Biology, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
11 questions · page 2 of 2
11. Total number of linkage groups in a normal human is:
- A. 02
- B. 23
- C. 46
- D. 92
Explanation: All the genes on one chromosome form a single linkage group, and the number of linkage groups equals the haploid chromosome number, which for humans is 23. The figure 46 is the diploid number, counting both members of each homologous pair, but the two homologues carry the same set of loci and so form one group, not two. Ninety two would be the count of chromatids after replication.
Correct answer: 23