Genomics Lesson 3

In test cross, the all phenotypes are of equal ratio, this means

• genes are unlinked

• genes are linked

In test cross, the all phenotypes are of equal ratio, Recombinant frequency will be

• 20 cM

• 30 cM

• 50 cM

• 40 cM

Test cross is between

• heterozygous for all traits and homozygous recessive for all traits

• homozygous dominant for all traits and homozygous recessive for all traits

• homozygous dominant for all traits and homozygous dominant for all traits

• homozygous dominant for all traits and heterozygous for all traits

Recombinant frequency look at the ratio of

• recombinant offsprings / total

• parental offsprings / total

• recombinant offsprings / parental offsprings

• parental offsprings /recombinant offsprings

If genes are linked, the recombinant freq should be

• > 50cM

• < 50cM

• not sure; brain fried

• 50cM

In self cross between heterozygous F1 and F1, a 9331 ratio means

• 2 genes are unlinked

• 2 genes are linked

• 3 genes are unlinked

• 3 genes are linked