The difference between spermiogenesis and spermiation is?
1. In spermiogenesis, spermatids are formed, while in spermiation, spermatozoa are formed.
2. In spermiogenesis, spermatozoa are formed, while in spermiation, spermatids are formed.
3. In spermiogenesis, spermatozoa from Sertoli cells are released into the cavity of seminiferous tubules, while in spermiation, spermatozoa are formed.
4. In spermiogenesis, spermatozoa are formed, while in spermiation, spermatozoa are released from Sertoli cells into the cavity of seminiferous tubules.

Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 77%
From NCERT
NEET - 2018
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The amnion of mammalian embryo is derived from?
1. ectoderm and mesoderm
2. endoderm and mesoderm
3. mesoderm and trophoblast
4. ectoderm and endoderm
Subtopic:  Embryonic Development till Gastrulation |
NEET - 2018
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Match the items given in Column I with those in Column II and select the correct option given below:

Column I Column II
(a) Proliferative Phase (i) Breakdown of the endometrial lining
(b) Secretory Phase (ii) Follicular Phase
(c) Menstruation (iii) Luteal Phase
 
Options: (a) (b) (c)
1. (iii) (ii) (i)
2. (i) (iii) (ii)
3. (ii) (iii) (i)
4. (iii) (i) (ii)
Subtopic:  Introduction to Menstrual Cycle: 2 | Menstrual Cycle: Pre Ovulatory Phase | Introduction to Menstrual Cycle |
 85%
From NCERT
NEET - 2018
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Match column I with column II and select the correct option using the codes given below:

1. A-2 B-4 C-3 D-1
2. A-3 B-4 C-1 D-2
3. A-3 B-1 C-4 D-2
4. A-1 B-4 C-3 D-2

Subtopic:  Embryonic Development till Gastrulation | Female External Genitalia |
 88%
NEET - 2016
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Changes in GnRH pulse frequency in females is controlled by circulating levels of:
1. estrogen and inhibin
2. progesterone only
3. progesterone and inhibin
4. estrogen and progesterone
Subtopic:  Introduction to Menstrual Cycle |
 73%
NEET - 2016
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Capacitation refers to changes in the:

1. sperm before fertilization
2. ovum before fertilization
3. ovum after fertilization
4. sperm after fertilization

Subtopic:  Fertilization: Part 1 | Fertilization |
 68%
NEET - 2015
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Which of these is not an important component of the initiation of parturition in humans?
1. Increase in oestrogen and progesterone ratio
2. Synthesis of prostaglandins
3. Release of oxytocin
4. Release of prolactin
Subtopic:  Fetal Development & Parturition |
 57%
NEET - 2015
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The shared terminal duct of the reproductive and urinary system in the human male is:

1. Urethra

2. Ureter

3. Vas deferens

4. Vasa efferentia

Subtopic:  Male Reproductive System |
 82%
From NCERT
AIPMT - 2014
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Seminal plasma in human males is rich in:

1. fructose and calcium

2. glucose and calcium

3. DNA and testosterone

4. ribose and potassium

Subtopic:  Semen and Male Fertility |
 95%
From NCERT
AIPMT - 2010
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Identify the incorrect statement regarding female reproductive system?

1. The first meiotic division of a primary oocyte forms two secondary oocytes that remain in this stage unless fertilization occurs.
2. Uterine tube, fallopian tube, and oviduct are terms used to refer to the same organ.
3. Menopause marks the termination of both menstruation and ovulation.
4. An ectopic pregnancy is an implantation of the blastocyst in a site other than the uterus.

Subtopic:  Ovary |
 75%
From NCERT
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