Question

In: Biology

Start by writing out your theoretical crosses for your fly traits. You should have four crosses...

Start by writing out your theoretical crosses for your fly traits. You should have four crosses for each reciprocal cross:

•Mutant female x wild type male both autosomal

•Mutant female x wild type male both X-linked

•Mutant female x wild type male traitAautosomal, trait B X-linked

•Mutant female x wild type male trait B autosomal, trait A X-linked

•Mutant male x wild type female both autosomal

•Mutant male x wild type female both X-linked

•Mutant male x wild type female traitAautosomal, trait B X-linked

•Mutant male x wild type female trait B autosomal, trait A X-linked

Wild Type: Red Eyes and Long Wings

Mutation: White eyes are short wings

Solutions

Expert Solution

Representation:

Trait A= Eye color

1. Autosomal

Red (Wildtype) = E= dominant, genotype = EE(Homozygous), Ee (Heterozygous)

White (mutant) e= recessive, genotype = ee

Trait B= Wing

Long (Wildtype) = dominant, genotype = WW/Ww

Short (mutant)= recessive, genotybe = ww

2. X-linked

Male:

Red eye = XEY

White eye = XeY

Long wings = XWY

Short wings = XwY

Female:

Red eye = XEXE /XE Xe

White eye = Xe Xe

Long wings = XWXW/ XWXw

Short wings = XwXw

1. Cross: mutant female x wildtype male (Both autosomal)

EEWW x eeww

EW

EW

ew

EeWw

EeWw

ew

EeWw

EeWw

2. Cross: mutant female x wildtype male (Both X-linked)

Trait A: XEY x Xe Xe

Xe

Xe

XE

XE Xe

XE Xe

Y

XeY

XeY

Trait B: XWY x Xw Xw

Xw

Xw

XW

XW Xw

XW Xw

Y

XwY

XwY

3. Cross: mutant female x wildtype male (Trait A autosomal, B X-linked)

EEXWY x ee XwXw

eXw

e Xw

EXW

Ee XW Xw

Ee XW Xw

EY

Ee XwY

Ee XwY

4. Cross: mutant female x wildtype male (Trait B autosomal, A X-linked)

WWXEY x ww XeXe

wXe

wXe

WXE

WwXE Xe

WwXE Xe

WY

WwXeY

WwXeY

5. Cross: mutant male x wildtype female (Both autosomal)

EEWW x eeww

ew

ew

EW

EeWw

EeWw

EW

EeWw

EeWw

6. Cross: mutant male x wildtype female (Both X-linked)

Trait A: XEXE x XeY

XE

XE

Xe

XE Xe

XE Xe

Y

XE Y

XEY

Trait B: XWXW x XwY

XW

XW

Xw

XW Xw

XW Xw

Y

XW Y

XW Y

7. Cross: mutant male x wildtype female (Trait A autosomal, B X-linked)

EEXWXW x ee XwY

EXW

EXW

eXw

Ee XW Xw

Ee XW Xw

eY

EeXWY

EeXWY

8. Cross: mutant male x wildtype female (Trait B autosomal, A X-linked)

WWXEXEx wwXeY

WXE

WXE

wXe

WwXEXe

WwXEXe

wY

WwXE Y

WwXEY


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