Question

In peas, the allele for tall (T) is dominant over short (t), and the unlinked gene for seed color has the allele for yellow seeds (G) dominant over green seeds (g). What is the predicted phenotypic ratio for offspring from this cross: Ttgg x ttGga.3 tall, yellow: 3 tall, green: 1 short, yellow: 1 short, greenb.3 tall, yellow: 1 tall, green: 3 short, yellow: 1 short, greenc.9 tall, yellow: 3 tall, green: 3 short, yellow: 1 short, greend.1 tall, yellow: 1 tall, green: 1 short, yellow: 1 short, greene.1 tall, yellow: 1 tall, green

Answer 1

d 1 tall, yellow: 1 tall, green: 1 short, yellow: 1 short, greene.1 tall, yellow: 1 tall, green

Step-by-step explanation:

The predicted phenotype will be 1 tall, yellow: 1 tall, green: 1 short, yellow: 1 short, greene.1 tall, yellow: 1 tall, green

The two genes are unlinked. This means that they are independent of each other. In other words, they are independently inherited.

Ttgg was crossed with ttGg

Ttgg x ttGg

Offpsring

4 TtGg tall and yellow

4 ttGg short and yellow

4 Ttgg tall and green

4 ttgg short and green

Hence, the phenotypic ratio is 1:1:1:1.

The correct option is d.

You can view the attached image for the Punnet's square analysis.