Home › Maharashtra HSC Class 12 (Science) › biology › Inheritance and Variation › Sex linked inheritance is exemplified by
Sex 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_
Related questions
Down syndrome in humans is caused byCrossing over occurs during which stage of meiosis?In Drosophila, the linkage groups equal thePleiotropy refers toCodominance is best illustrated byIncomplete dominance is characterised byIndependent assortment is demonstrated by a dihybrid cross resulting in a phenotypic ratioA monohybrid cross between two heterozygotes (Tt × Tt) gives a phenotypic ratio of