The normal body colour of a grasshopper is green . The gene for this character is present on X chromosome. Due to recessive mutation in this gene , grasshoppers with pink body colour are produced . A male grasshopper with green body colour mates with a female grasshopper with pink body colour . Which of these statements is true ?

Options

A. All offsprings will be green irrespective os sex.
B. All offsprings will be pink irrespective os sex.
C. 50% daughters will be green and 50% sons will be pink.
D. All the daughters will be green and all the sons will be pink.

Answer

To solve the problem, we will analyze the genetics of the grasshoppers based on the information provided about their body color and the inheritance pattern of the genes involved.

### Step-by-Step Solution:

1. **Identify the Genotypes of the Parents**:
- The male grasshopper has a green body color, which means he has a normal X chromosome. Since males have only one X chromosome, his genotype is X^G Y (where X^G represents the normal green allele).
- The female grasshopper has a pink body color, which indicates that she has two recessive alleles for the pink mutation. Therefore, her genotype is X^P X^P (where X^P represents the pink allele).

2. **Determine the Possible Gametes**:
- The male can produce two types of gametes: X^G (normal) and Y (no X chromosome).
- The female can only produce one type of gamete: X^P (pink).

3. **Perform the Cross**:
- When we cross the male (X^G Y) with the female (X^P X^P), we can set up a Punnett square to visualize the offspring:
- Female offspring (XX): X^G from the father and X^P from the mother → X^G X^P (green carrier)
- Male offspring (XY): X^P from the mother and Y from the father → X^P Y (pink)

4. **Analyze the Offspring**:
- The female offspring will have the genotype X^G X^P, which means they will be carriers of the pink allele but will express the green body color due to the dominance of the normal allele.
- The male offspring will have the genotype X^P Y, which means they will express the pink body color because they do not have a second X chromosome to suppress the recessive allele.

5. **Conclusion**:
- From this cross, we can conclude:
- All daughters will be green carriers (X^G X^P).
- All sons will be pink (X^P Y).

### Final Answer:
The true statement is that all daughters will have green body color (carriers), and all sons will have pink body color.