✓ Board-verified
Biology · 2026 · 1 mark
CBSE 2026 · Region 5 · Set 1 · Q13
Assertion (A): The embryo with 8 to 16 blastomeres is called a morula. Reason (R): The morula continues to divide and transform into trophoblast.
Assertion (A) : The embryo with $\displaystyle 8$ to $\displaystyle 16$ blastomeres is called a morula. Reason $\displaystyle (R)$ : The morula continues to divide and transform into trophoblast.
Official answer
(C)
Assertion (A) is true, but Reason (R) is false.
All Human Reproduction questions2026 question paperNCERT solutions: Human ReproductionPractice Human Reproduction →
More from Human Reproduction
- Colostrum secreted by the mother's mammary glands in a human female during the initial days of lactation is rich in antibody:2025
- Which of the following options correctly matches the name of the hormone to its site of production in the human body?2023
- (i) Describe the events of spermatogenesis with the help of a A schematic diagram. (ii) Explain the role of hormones in spermatogenesis. OR (i) Show…2024
- Given below are few statements with reference to the human male reproductive system. (i) Paired seminal vesicles, prostate gland and bulbourethral…2025
- Given below are a few statements with reference to the human sperm. (i) Sperm head contains a large nucleus and a lot of cytoplasm. (ii) Mitochondria…2025
- Which of the following hormones is not secreted by the human placenta?2023
- Explain the neuroendocrine mechanism involved in the process of parturition in a human female leading to the expulsion of the baby out of the uterus…2025
- Given below are structural details of a human mammary gland: 1 (i) The glandular tissue in the breast has 15-20 clusters of cells called alveoli.…2023
CBSE Class 12 Biology past-paper question from the 2026 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.