The correct sequence of the various phases of a typical menstrual cycle is:

1. Menstrual → Follicular → secretory → Ovulatory

2. Menstrual → Follicular → Ovulatory → secretory

3. Ovulatory → Follicular → secretory → Menstrual

4. Menstrual → secretory → Follicular → Ovulatory

Subtopic:  Introduction to Menstrual Cycle: 1 | Introduction to Menstrual Cycle: 2 | Introduction to Menstrual Cycle |
 70%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

During pregnancy:

1. All events of menstrual cycle stop and there is no menstruation

2. Events of menstrual cycle continue but there is no menstruation

3. Events of menstrual cycle contInue but there is menstruation only in the first trimester

4. All events of menstrual cycle stop and there is menstruation only in the first trimester

Subtopic:  Menstrual Cycle: Luteal Phase |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

In the absence of fertilization, corpus luteum:

 
1. Stops secreting progesterone but increases the secretion of estrogen
2. Stops secreting estrogen but increases the secretion of progesterone
3. Increases the secretion of both progesterone and estrogen
4. Degenerates
Subtopic:  Menstrual Cycle: Luteal Phase |
 76%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

What ensures that only one sperm can fertilize the ovum?

1. Corona radiata

2. Ground substance around ovum

3. Zona pellucida

4. Acrosome

Subtopic:  Fertilization: Part 2 | Fertilization |
 74%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

During pregnancy the levels of thyroxin:

1. Increase several folds in maternal blood

2. Increases several folds in fetal blood

3. Decreases several folds in maternal blood

4. Decreases several folds in fetal blood

Subtopic:  Fetal Development & Parturition |
 81%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The first movements of the fetus and the appearance of hair on the head are usually observed during:

1. 2nd month

2. 3rd month

3. 5th month

4. 6th month

Subtopic:  Fetal Development & Parturition |
 78%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

The milk produced during the initial few days of lactation, called colostrum, is essential for the new born as colostrums contains:

1. Large amount of glucose

2. Anti-infective antibodies

3. Fats

4. Various hormones

Subtopic:  Mammary Gland & Lactation |
 91%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

All of the following structures are derived from mesoderm except the ____.

1. pancreas

2. dermis of skin

3. notochord

4. heart

Subtopic:  Embryonic Development till Gastrulation | Fetal Development & Parturition |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Sperm has several components out of which the function of the acrosome is to:

1. Produce base to neutralize the acidic environment of the female reproductive system
2. Propel the sperm as they swim through the fluid of the female reproductive tract
3. Release an enzyme that breaks down the membrane of the ovum
4. Metabolise the sugars provided by the semen for energy
Subtopic:  Fertilization: Part 2 | Fertilization |
 84%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

advertisementadvertisement

At what point does the secondary oocyte complete meiosis?

1. when acrosomal enzymes begin to break down the egg's jelly coat

2. when the luteinizing hormone triggers ovulation

3 after it is penetrated by a sperm cell

4. when the secondary oocyte implants in the endometrium of the uterus

Subtopic:  Fertilization: Part 2 | Fertilization |
 65%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
Links
To view explanation, please take trial in the course.
NEET 2025 - Target Batch