In humans, if X-carrying sperm fertilizes the egg, the offspring will be:
Correct answer: A. Female
- A. Female
- B. Male
- C. Abnormal male
- D. Abnormal female
Explanation
All the eggs of human female carry X-chromosome. However male produces two types of sperms; half having X-chromosomes and half having Ychromosomes. Thus the gender of the offspring will depend upon the type of sperm used in fertilization. If X chromosome carrying sperm fertilized the eggs the offspring will be female (XX) otherwise male XY.
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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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