F2 Genotypes Number Observed
DE·de 651
de·de 649
De·de 356
dE·de 344
35 map units
The possible genotypes are:
Ddee-50%
ddEe-50%
Is this assuming the genes are sorted independently? Because if it is I got B of Q2 wrong
Ans1. Gametes by DE.DE females - DE
Gametes by de.de males- de
2. Gametes produced by progeny from F1 DdEe = DE, De, dE, de
Gametes by dede males= de
3. Genotypes by cross DdEe * dede = DdEe, Ddee, ddEe, ddee
GAMETES |
de |
DE |
DdEe |
De |
Ddee |
dE |
ddEe |
de |
ddee |
4. Proportion of each genotype and phenotype= 1/4. Every genotype and phenotype is different.
5. No, the genes are not linked because recombinants as well as parental genotypes are formed.
6. Parental progeny = DE.de, de.de
Recombinants= De.de, dE.de
7. Distance between two genes = (no. of recombinants)*100/(total progeny) = (356+344)*100/ 651+649+356+344
= 35cM
Because of time constraints, only this question could be attempted, please post another question seperately.
THANK YOU AND HAPPY TO HELP YOU!!!
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