Distances between genes on a chromosome map are expressed in
- 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.
Related questions
The separation of the two alleles of a gene so that each gamete receives only one of them is Mendel's law of
The F2 phenotypic ratio of a dihybrid cross between two heterozygotes is
To find out whether a tall pea plant is homozygous or heterozygous, it should be crossed with
The genotypic ratio of the F2 generation of a monohybrid cross is
A red flowered four o'clock plant crossed with a white flowered one gives pink flowered offspring. This is an example of