if the following cross: unc dpy (hermaphrodite) x + + (male) 1) All the F1 male

Question

if the following cross: unc dpy (hermaphrodite) x + + (male) 1) All the F1 male progeny are Unc Dpy and all the hermaphrodites are wild type. what does it tell you about the unc and dpy genes. 2) what does it tell you about the unc and dpy genes if all the F1 progeny is wild type? Pause F12 Page 1. If a sperm with the genotype aBCDE fertilizes and egg with the genotype abcDe. i) what is the genotype of the zygote? e the zygote grows, what will be the genotypes and frequencies of its gametes? 2. In the following cross: unc dpy (hermaphrodite) x + + (male) ) All the F1 male progeny are Unc Dpy and all the hermaphrodites are wild type. What does it ell you about the unc and dpy genes. ) What does it tell you about the unc and dpy genes if all the F1 progeny is wild type? Using the branch method provide the genotypic and phenotypic proportions of the progeny om the following cross: AaBBccDd x AABbccDd

Explanation / Answer

1) if all F1 male mre Unc Dpy and all hermaphrodite are wildtype then the Unc and Dpy genes are not on the sex chromosome rather they are autosomal. Also, they don't segregate i.e. they are linked.

2) if all progeny in F1 is wild type, then the Unc and Dpy genes are recessive that gets masked by dominant wildtype gene

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