Question

1. a tall, green pea plant (ttgg) is crossed with a short, white pea plant (ttgg). what will be the possible genotypes and phenotypes of the offspring? show your work as a punnett square and write your answers as a phenotypic ratio.

1. a heterozygous tall, heterozygous green-flowered plant is crossed with a homozygous short, heterozygous green-flowered plant. what will be the possible genotypes and phenotypes of the offspring? show your work as a punnett square and write your answers as a phenotypic ratio.

Explanation:

For Question 3:

Step1: Identify gamete genotypes

Parent 1 (TtGg) gametes: $TG, Tg, tG, tg$
Parent 2 (ttgg) gametes: $tg, tg, tg, tg$

Step2: Build Punnett Square

	$TG$	$Tg$	$tG$	$tg$
$tg$	$TtGg$	$Ttgg$	$ttGg$	$ttgg$
$tg$	$TtGg$	$Ttgg$	$ttGg$	$ttgg$
$tg$	$TtGg$	$Ttgg$	$ttGg$	$ttgg$

Step3: Assign phenotypes

• $TtGg$: Tall, Green
• $Ttgg$: Tall, White
• $ttGg$: Short, Green
• $ttgg$: Short, White

Step4: Calculate phenotypic ratio

Count each phenotype: 4 Tall/Green, 4 Tall/White, 4 Short/Green, 4 Short/White. Simplify ratio.

Step1: Define parent genotypes

Parent 1: $TtGg$ (heterozygous tall, green)
Parent 2: $ttGg$ (homozygous short, green)

Step2: Identify gamete genotypes

Parent 1 gametes: $TG, Tg, tG, tg$
Parent 2 gametes: $tG, tg, tG, tg$

Step3: Build Punnett Square

	$TG$	$Tg$	$tG$	$tg$
$tg$	$TtGg$	$Ttgg$	$ttGg$	$ttgg$
$tG$	$TtGG$	$TtGg$	$ttGG$	$ttGg$
$tg$	$TtGg$	$Ttgg$	$ttGg$	$ttgg$

Step4: Assign phenotypes

• $TtGG, TtGg$: Tall, Green
• $Ttgg$: Tall, White
• $ttGG, ttGg$: Short, Green
• $ttgg$: Short, White

Step5: Count and simplify ratio

Tall Green: 6, Tall White: 2, Short Green: 6, Short White: 2. Simplify ratio.

Answer:

Genotypes: $TtGg, Ttgg, ttGg, ttGg$
Phenotypic Ratio: $1:1:1:1$ (Tall Green : Tall White : Short Green : Short White)

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For Question 4: