Barr Bodies in Turner Syndrome
Number of Barr bodies in Turner syndrome (45, XO) is:
- 1
- 2
- 3
- — Correct Answer
Explanation:
Correct Answer: 0
Number of Barr bodies = Number of X chromosomes − 1.
Turner syndrome (44 + XO): 1 X − 1 = 0 Barr bodies.
Sex Chromosome Abnormalities in Humans
| Condition | Karyotype | Barr Bodies |
|---|---|---|
| Turner syndrome | 45 (44 + XO) | 0 |
| Normal female | 46 (44 + XX) | 1 |
| Klinefelter's syndrome | 47 (44 + XXY) | 1 |
| Super female | 47 (44 + XXX) | 2 |
| Super male / Jacob's syndrome | 47 (44 + XYY) | 0 |
📚 About this Topic — Animal Genetics & Breeding
This multiple choice question is from Animal Genetics & Breeding, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Genetics & Breeding to strengthen your preparation.
