CUET · BIOLOGY · PYQ PAPER 2023
The chromosomal disorders are caused due to absence, excess or abnormal arrangement of one or more chromosomes. Failure of segregation of chromatids during cell division results in the gain or loss of chromosome(s), called aneuploidy.
Which of the following statements are correct with respect to the humans suffering from the disorder?
(A) One in every 800 live births shows this karyotype
(B) The affected individual has 45 chromosomes.
(C) Non-disjunction of chromosomes at the time of gamete formation causes this disorder.
(D) In this disorder, individual has 45 autosomes
Choose the correct answer from the options given below:
- A (A), (B) and (C) Only
- B (A), (B) and (D) Only
- C (A), (C) and (D) Only
- D (B) and (C) Only
Answer & Solution
Correct Answer
(D) (B) and (C) Only
Step-by-step Solution
Detailed explanation
(B) and (C) Only
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