Distances between genes on a chromosome map are expressed in
Correct answer: B. map units, or centiMorgans
- A. micrometres
- B. map units, or centiMorgans
- C. nanometres
- D. base pairs per gamete
Explanation
One map unit, one centiMorgan, equals one per cent recombination between two genes. The map is therefore a measure of recombination frequency rather than a physical length, though the two roughly correspond.
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About Mendel's Laws of Inheritance
Mendelian inheritance explains how alleles separate into gametes and assort during reproduction, producing predictable genotype and phenotype ratios. Questions cover dominance, recessiveness, homozygous and heterozygous conditions, the laws of segregation and independent assortment, monohybrid and dihybrid crosses, test crosses and the limits caused by linked genes.
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