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Down’s syndrome in humans is due to
Options
(a) Two ‘Y’ chromosomes
(b) Three ‘X’ chromosomes
(c) Three copies of chromosomes 21
(d) Monosomy
Correct Answer:
Three copies of chromosomes 21
Explanation:
Down’s syndrome is the chromosomal disorders due to the presence of an additional copy of the chromosome. Number 21 (trisomy of 21). The affected individual is short saturated with small round head, furrowed tongue and partially open mouth and mental development is retarted.
Related Questions: - Consider the following statements about biomedical technologies
- Which of the following cytoplasmic granules contain histamine?
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- Choose the correct option for the following events of meiosis in correct sequence:
- What is true about the isolated small tribal populations?
Question Type: Memory
(964)
Difficulty Level: Easy
(1008)
Topics: Genetics
(204)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider the following statements about biomedical technologies
- Which of the following cytoplasmic granules contain histamine?
- Albuminous seeds store their reserve food mainly in
- Choose the correct option for the following events of meiosis in correct sequence:
- What is true about the isolated small tribal populations?
Question Type: Memory (964)
Difficulty Level: Easy (1008)
Topics: Genetics (204)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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