MHT CET 202623 AprilMorning Shift
- Exam
- MHT CET
- Year
- 2026
- Date
- 23 April
- Shift
- Morning Shift
- Subject
- Biology
- Chapter
- Human Reproduction
MHT CET 2026 · 23 April · Morning Shift · Biology · Human Reproduction
Which of these developments occurs during the 1^ st trimester of...
Which of these developments occurs during the 1^{st}
Options
- A(A), (B) and (D) only.
- B(A), (B) and (C) only.
- C(A), (B), (C) and (D).
- D(A), (C) and (D) only.
Correct answer
D. (A), (C) and (D) only.
Step-by-step solution
The first trimester of pregnancy corresponds to the first 12 weeks. Let us evaluate the given statements:
Statement (A) is correct. By the end of the second month of pregnancy, which is within the first trimester, the foetus develops limbs and digits, including arms, hands, fingers, feet, and toes.
Statement (B) is incorrect. The first movements of the foetus are typically felt by the mother during the fifth month, which falls in the second trimester.
Statement (C) is correct. By the end of the first trimester, most of the major organ systems are formed, and the foetus begins to show early reflex actions such as opening and closing fists and mouth.
Statement (D) is correct. The development of the central nervous system starts early in the first trimester, and the circulatory and excretory systems begin to function as major organ systems are established.
Therefore, statements (A), (C), and (D) represent developments during the first trimester.
Answer: (A), (C) and (D) only.
Statement (A) is correct. By the end of the second month of pregnancy, which is within the first trimester, the foetus develops limbs and digits, including arms, hands, fingers, feet, and toes.
Statement (B) is incorrect. The first movements of the foetus are typically felt by the mother during the fifth month, which falls in the second trimester.
Statement (C) is correct. By the end of the first trimester, most of the major organ systems are formed, and the foetus begins to show early reflex actions such as opening and closing fists and mouth.
Statement (D) is correct. The development of the central nervous system starts early in the first trimester, and the circulatory and excretory systems begin to function as major organ systems are established.
Therefore, statements (A), (C), and (D) represent developments during the first trimester.
Answer: (A), (C) and (D) only.