Dihybrid inheritance

• Biology
• Further Education (Key Stage 5)

Allele Combinations in Gametes

FOIL Method

Select the allele combinations possible in gametes produced from the genotype YYRR

1. Y, Y, R, R.
2. YR, YR, YR, YR.
3. y, y, r, r.
4. yr, yr, yr, yr.

Select the allele combinations possible in gametes produced from the genotype yyrr.

1. Y, Y, R, R.
2. YR, YR, YR, YR.
3. y, y, r, r.
4. yr, yr, yr, yr.

Select the allele combinations possible in gametes produced from the genotype Yyrr.

1. Y, Y, R, R.
2. YR, YR, YR, YR.
3. Yr, Yr, yr, yr.
4. yr, yr, yr, yr.

Select the allele combinations possible in gametes produced from the genotype yyRr.

1. yR, yr, yR, yr.
2. YR, YR, YR, YR.
3. Yr, yr, Yr, yr,
4. yr, yr, yr, yr.

Select the allele combinations possible in gametes produced from the genotype YyRr.

1. r, y, r, y.
2. YR, YR, yr, yr.
3. rr, yy, rr, yy.
4. YR, Yr, yR, yr