6/ linkage and recombination Flashcards
(5 cards)
1
Q
true or false, mendels laws apply to linked genes
A
false
2
Q
why can ratios be different than expected on linked alleles
A
crossing over
3
Q
recombination frequency, how to calculate, highest possible
A
- RF = recombinants/ total meiotic products x 100 (%)
- recombinants = when crossing over has occurred
- 50%
4
Q
what is rf roughly proportional to
A
- distance between 2 loci
- further 2 genes are, more likely for there to be a recombination event between them
5
Q
why is it impossible to differentiate between genes on 2 dif chromosomes vs 2 genes v far apart on same chromosome
A
multiple crossing over events between the genes
