NEET 2023 · Class 12

Principles of Inheritance and Variation

Which of the following statements are correct about Klinefelter's Syndrome? A. This disorder was first described by Langdon Down (1866). B. Such an individual has overall masculine development. However, the feminine development is also expressed. C. The affected individual is short statured. D. Physical, psychomotor and mental development is retarded. E. Such individuals are sterile. Choose the correct answer from the options given below: [NEET 2023]

  1. (A)C and D only
  2. (B)B and E only
  3. (C)A and E only
  4. (D)A and B only

The NCERT line that answers it

Verbatim line

Such an individual has overall masculine development, however, the feminine development (development of breast, i.e., Gynaecomastia) is also expressed (Figure 4.17 a).

Chapter
Principles of Inheritance and Variation
Section
4.8.3 Chromosomal Disorders
Page
25
Words matched
26 of 26

The answer appears as a continuous sentence in NCERT. This is that sentence.

How this line gives the answer

0, emb=1.0, combined=1.0). Verified: high — The span directly contains both biological facts needed to justify option B: 'Such an individual has overall masculine development, however, the feminine development... is also expressed' matches option B, and 'Such individuals are sterile' matches option E.

We did this for 1,565 questions.

Every one traced to the exact sentence in NCERT that answers it, including 90% of the 2026 paper. Sit a mock on the real NEET 2027 computer interface and every mark you drop comes back with its line attached.

Take the free 5-minute checkMore from this chapter

Question text is reproduced from the published NEET 2023 paper for study and commentary. NCERT text is quoted, not redistributed; textbooks remain at ncert.nic.in. Our mapping method, including its measured error rates, is published at /methodology.