XXY, in case of Drosophila, is a:
Correct answer: C. Fertile female
- A. Fertile male
- B. Sterile female
- C. Fertile female
- D. Sterile male
Explanation
In Drosophila, XXY represents a female but in human it is an abnormal male, because Y chromosomes are essential for determining the sex of the individual. Normally male individual possess X and Y chromosomes and female have XX chromosomes.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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