QuestionDecember 15, 2025

3 Cross a Homozygous tall, green flowered plant with a Homozygous short white flowered plant. Alleles T=tall plants t=short plants G=green flowers g=white flowers What percentage of male offspring be short and green? Dihybrid Cross

3 Cross a Homozygous tall, green flowered plant with a Homozygous short white flowered plant. Alleles T=tall plants t=short plants G=green flowers g=white flowers What percentage of male offspring be short and green? Dihybrid Cross
3
Cross a Homozygous tall, green flowered plant
with a Homozygous short white flowered plant.
Alleles
T=tall plants
t=short plants
G=green flowers
g=white flowers
What percentage of
male offspring be
short and green?
Dihybrid Cross

Solution
4.2(156 votes)

Answer

18.75\% of the male offspring will be short and green. Explanation 1. Write Parental Genotypes Homozygous tall, green: TTGG; Homozygous short, white: ttgg 2. Determine Gametes TTGG produces TG gametes; ttgg produces tg gametes. 3. Write F1 Genotype All F1 offspring: TtGg 4. Set Up F1 Cross for Dihybrid (F1 × F1) Cross: TtGg \times TtGg 5. Find Probability of Short and Green (ttG\_) Probability of tt = \frac{1}{4} (from Tt \times Tt); G\_ (green) = GG or Gg = \frac{3}{4} (from Gg \times Gg). 6. Multiply Probabilities Total probability = \frac{1}{4} \times \frac{3}{4} = \frac{3}{16}

Explanation

1. Write Parental Genotypes<br /> Homozygous tall, green: $TTGG$; Homozygous short, white: $ttgg$<br />2. Determine Gametes<br /> $TTGG$ produces $TG$ gametes; $ttgg$ produces $tg$ gametes.<br />3. Write F1 Genotype<br /> All F1 offspring: $TtGg$<br />4. Set Up F1 Cross for Dihybrid (F1 × F1)<br /> Cross: $TtGg \times TtGg$<br />5. Find Probability of Short and Green ($ttG\_$)<br /> Probability of $tt = \frac{1}{4}$ (from $Tt \times Tt$); $G\_$ (green) = $GG$ or $Gg$ = $\frac{3}{4}$ (from $Gg \times Gg$).<br />6. Multiply Probabilities<br /> Total probability = $\frac{1}{4} \times \frac{3}{4} = \frac{3}{16}$
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