Genetic linkage mapping Flashcards
1
Q
Does recombination occur during meiosis
A
Has to occur at least once to each chromosome
2
Q
What is a problem with two-point cross test
A
Cannot detect double cross-overs
3
Q
How do you do mapping calculations for three point test-crosses
A
single and double recombinants/total progeny x 100
4
Q
What is the number that recombination frequencies between two genes can never exceed
A
50%
5
Q
What do calculations assume
A
No epistasis ot lethality
