Which of the followings is not correct about sex-linked inheritance?
Correct answer: C. Sex linked trait are more common in females
- A. The gene for eye color is located on X chromosome
- B. Y-chromosome is empty for gene
- C. Sex linked trait are more common in females
- D. Female can be homozygous or heterozygous
Explanation
Sex-linked traits in humans appear more often in males than in females due to the presence of only one X chromosome in males. Females have two X chromosomes which means if one copy of the gene is mutated, there is a chance that the other copy will be normal thus ensuring a normal phenotype.
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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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1,238 free Inheritance MCQs from Biology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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