(b) For successful pregnancy, at what phase of the menstrual cycle an early embryo (up to 3 blastomeres) should be implanted in the uterus (IUT) of a human female who has opted for Assisted Reproductive Technology (ART)? Support your answer with a reason.
Show Hint
Solution and Explanation
- Phase: Luteal phase (Day 15–28).
- Reason: During this phase, the endometrium is thick and rich in blood supply, suitable for implantation and nourishment of the embryo.
Top Questions on Menstrual Cycle
- Assertion (A): Corpus luteum secretes the hormone, progesterone. Reason (R): Hormone Progesterone is essential for maintenance of the endometrium.
- CBSE CLASS XII - 2025
- Biology
- Menstrual Cycle
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During menstrual cycle, the ovulation takes place approximately on 14th day.
Reason R: Rapid secretion of LH in the middle of menstrual cycle induces rupture of Graafian follicle and thereby the release of ovum.
In the light of the above statements, choose the most appropriate answer from the options given below.- NEET (UG) - 2024
- Biology
- Menstrual Cycle
- Arrange the following menstrual phases in order:
- MHT CET - 2024
- Biology
- Menstrual Cycle
In a human female, the reproductive phase starts on the onset of puberty and ceases around middle age of the female. Study the graph given below regarding menstrual cycle and answer the questions that follow:
(a) Name the hormones and their source organ, which are responsible for menstrual cycle at puberty.
- CBSE CLASS XII - 2024
- Biology
- Menstrual Cycle
Explain the following phases in the menstrual cycle of a human female:
(1) Menstruation
(2) Follicular phase
(3) Luteal phase- CBSE CLASS XII - 2024
- Biology
- Menstrual Cycle
Questions Asked in CBSE CLASS XII exam
On 31st March, 2024 following is the Balance Sheet of Bhavik Limited :
Bhavik Ltd.
Additional Information :
(i) During the year a piece of machinery costing Rs 8,00,000 accumulated depreciation thereon Rs 50,000 was sold for Rs 6,50,000
(ii) Debentures were redeemed on 31-03-2024.
Calculate:
(a) Cash flows from Investing Activities
(b) Cash flows from Financing Activities
- CBSE CLASS XII - 2025
- Analysis of Financial Statements
- Draw the structure of the major monohalo product for each of the following reactions:
- CBSE CLASS XII - 2025
- Haloalkanes And Haloarenes
- If \( x = e^{\frac{x}{y}} \), then prove that \( \frac{dy}{dx} = \frac{x - y}{x \log x} \).
- CBSE CLASS XII - 2025
- Differentiation
- The value of \( \cos \left( \frac{\pi}{6} + \cot^{-1}(-\sqrt{3}) \right) \) is:
- CBSE CLASS XII - 2025
- Trigonometry
- A small conducting sphere A of radius \( r \) charged to a potential \( V \), is enclosed by a spherical conducting shell B of radius \( R \). If A and B are connected by a thin wire, calculate the final potential on sphere A and shell B.
- CBSE CLASS XII - 2025
- Electric charges and fields