allerySex linked inheritance is exemplified by
AABO blood group (typical)
Bskin colour
Ctongue rolling
Dhaemophilia and colour blindness in humans
Answer & Solution
Correct answer: D. haemophilia and colour blindness in humans
1. Haemophilia and red-green colour blindness genes lie on the X chromosome.
2. Males with one defective allele express the trait; females need two defective alleles.
3. Hence these conditions appear more frequently in males.
_Source: Maharashtra Balbharati Std XII Biology, Ch 3 "Inheritance and Variation" §3.7_
Keep practising Unit 5C: Non-Mendelian Genetics & Population Transmission
Browse all Unit 5C: Non-Mendelian Genetics & Population Transmission questions for AP Biology, or explore more Biology topics.
Related questions
Which of the following is **not** a stop codon?The semiconservative nature of DNA replication was experimentally proved by:The F₂ **genotypic** ratio in Mendel's monohybrid cross is:In Mendel's monohybrid cross between true-breeding tall (TT) and dwarf (tt) plants, the F₂Mendel conducted his hybridisation experiments on which plant?In the Watson-Crick double helix, adenine pairs with thymine via how many hydrogen bonds?In birds, the sex-determination mechanism is:Down syndrome in humans is caused by