Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
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?
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Answer:
Solution:
Grasshoppers showtype of inheritance. Female grasshoppers have twochromosomes and male grasshoppers have one X chromosome. Let the chromosome with the recessive mutation producing pink body colour is Xp. Female grasshoppers with pink body colour will have XpXp. Male grass hopper will have one. In the cross between XpXp and XO, only two phenotypes will be produced: XXpcarrier females who will be green and XpO pink body males.
