Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEET 2008
Exam
NEET
Year
2008
Subject
Zoology
Chapter
Principles of Inheritance and Variation

NEET 2008 · Zoology · Principles of Inheritance and Variation

Which one of the following condition in humans is correctly matched...

Which one of the following condition in humans is correctly matched with its chromosomal abnormality/linkage?

Options

  1. AKlinefelter's syndrome-44 autosomes +XXY+\mathrm{XXY}
  2. BColourblindness - Y-linked
  3. CErythroblastosis foetalis-X-linked
  4. DDown syndrome-44 autosomes + XO

Correct answer

A. Klinefelter's syndrome-44 autosomes +XXY+\mathrm{XXY}

Step-by-step solution

Klinefelter's syndrome is represented by 44 autosomes + XXY. When an abnormal egg with XX\mathrm{XX} chromosome is fertilized by a sperm carrying Y-chromosome a zygote having XXY\mathrm{XXY} sex chromosomes is formed. The resulting young one is an abnormal sterile male. The 44 autosome + XO condition is due to Turner's syndrome. Such females are sterile and have short stature, webbed neck, broad shield-shaped chest etc. Down's syndrome is due to trisomy of 21st 21^{\text{st }} pair of chromosome. It is characterised by moderate mental retardation, large tongue, short stature, stubby fingers, an enlarged liver and spleen. Colourblindness is an X-linked disease. The person suffering from this disease cannot differentiate between red and green colours. Erythrobalstosis-foetalis is caused due to Rh\mathrm{Rh} factor in child of Rh+\mathrm{Rh}^{+} man and Rh−\mathrm{Rh}^{-} woman.
Practice Principles of Inheritance and Variation on Quantrex Academy →

More from Principles of Inheritance and Variation

Match List I with List II : List I List II A. Incomplete dominance I. Human skin colour… NEET 2026The sixth mutant codon of beta globin gene causing polymerization of Haemoglobin and… NEET 2026In a population of a grasshopper species, the chromosome number of some members is 23 and… NEET 2026Which one of the following disorders is caused by the substitution of Glutamic acid (Glu)… NEET 2026What is the probability of having children with 'O' blood group, where both mother and… NEET 2026Given below are two statements : one is labelled as Assertion A and the other is labelled… NEET 2026Given below are two statements : Statement I : Down's syndrome is caused by the absence… NEET 2026Which of the following statements are true with reference to the sex-determination in… NEET 2026 Full Principles of Inheritance and Variation list All NEET PYQs