In case 1: ggxyy gy(green; as dominant). ❌in case2: GgxGg obvious green. ❌in case 3: yyxyy. ✅ since it’s homozygous and y being dominant hence all progeny will have yellow pod

Explanation:

To understand why the correct answer is option C, let's first review the concept of dominant and recessive traits.

In genetics, dominant traits are those that are expressed when an individual has at least one copy of the dominant allele. On the other hand, recessive traits are only expressed when an individual has two copies of the recessive allele.

In this case, green pods are the dominant trait and yellow pods are the recessive trait. This means that individuals can have either two green alleles (homozygous green), one green and one yellow allele (heterozygous green), or two yellow alleles (homozygous yellow).

Possible Crosses:

a) Homozygous green and homozygous yellow:
- In this cross, both parents have different alleles for the pod color trait.
- The homozygous green parent will only pass on the green allele, while the homozygous yellow parent will only pass on the yellow allele.
- As a result, all progeny from this cross will be heterozygous green, meaning they will have one green allele and one yellow allele. Therefore, this cross will not result in all progeny having yellow pods.

b) Heterozygous green and heterozygous green:
- In this cross, both parents have one green allele and one yellow allele.
- The possible combinations of alleles that can be passed on from each parent are: green-green, green-yellow, yellow-green, and yellow-yellow.
- Since green is the dominant trait, any progeny that receives at least one green allele will have green pods.
- Therefore, this cross will not result in all progeny having yellow pods.

c) Homozygous yellow and homozygous yellow:
- In this cross, both parents have the recessive yellow allele.
- Since yellow is the recessive trait, individuals need to have two copies of the yellow allele to express the yellow pod color.
- As both parents only have the yellow allele to pass on, all progeny from this cross will receive two yellow alleles and therefore have yellow pods.
- This is why the correct answer is option C.

d) Homozygous green and homozygous green:
- In this cross, both parents have the dominant green allele.
- As both parents only have the green allele to pass on, all progeny from this cross will receive two green alleles and therefore have green pods.
- This cross will not result in all progeny having yellow pods.