Which represents the cross between parent plants if one is heterozygous and has yellow-colored pods and the other is homozygous and has green-colored pods?

A. [tex]Yy \times yy[/tex]
B. [tex]YY \times yy[/tex]
C. [tex]Yy \times Yy[/tex]
D. [tex]yy \times yy[/tex]



Answer :

Let's solve this step-by-step to determine which cross between parent plants represents the given scenario, where one parent is heterozygous with yellow-colored pods, and the other is homozygous with green-colored pods.

### Step 1: Identify Genotypes of the Parent Plants

1. Heterozygous with Yellow-colored Pods (Parent 1):
- Heterozygous means having two different alleles for a particular gene.
- If the allele for yellow pods is represented by 'Y' (dominant) and the allele for green pods is represented by 'y' (recessive), then the genotype for this parent is `Yy`.

2. Homozygous with Green-colored Pods (Parent 2):
- Homozygous means having two identical alleles for a particular gene.
- Because green pods are recessive, the genotype must be `yy`.

### Step 2: Represent the Cross between the Parent Plants

Parent 1 (heterozygous, yellow-colored pods): `Yy`
Parent 2 (homozygous, green-colored pods): `yy`

The cross can be written as:
[tex]\[ Y y \times y y \][/tex]

### Step 3: Determine the Possible Offspring Genotypes

When we perform the cross, each parent will contribute one allele to their offspring. Here are the possible combinations:

- Parent 1 (`Yy`) can contribute either `Y` or `y`.
- Parent 2 (`yy`) can contribute only `y`.

So, the possible offspring genotypes are:
- `Y` from Parent 1 and `y` from Parent 2: `Yy` (Yellow pods)
- `y` from Parent 1 and `y` from Parent 2: `yy` (Green pods)

Hence, the possible genotypes of the offspring will be:
[tex]\[ \text{Yy, Yy, yy, yy} \][/tex]

### Conclusion

The cross between parent plants, where one plant is heterozygous with yellow-colored pods and the other is homozygous with green-colored pods, is represented by:
[tex]\[ Y y \times y y \][/tex]

So the correct representation among the given options is:
[tex]\[ Y y \times y y \][/tex]