Which endometrial stage corresponds to the follicular phase of the menstrual cycle?

1. proliferative 2. luteal
3. secretory 4. menstruation
Subtopic:  Menstrual Cycle: Pre Ovulatory Phase |
 72%
From NCERT
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The fluid-filled cavities near the embryonic ectoderm and the embryonic endoderm are respectively:
1. amniotic cavity, blastocele
2. amniotic cavity, yolk sac
3. blastocele, amniotic cavity
4. yolk sac, amniotic cavity

Subtopic:  Embryonic Development till Gastrulation |
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Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): All mitochondria in the bodily cells of an individual normally derive from the mother alone.
Reason (R): The sperm has a large number of mitochondria in the body that are spirally arranged.
 In the light of the above statements, choose the most appropriate answer from the options given below:  
1. Both (A) and (R) are true and (R) is the correct explanation of (A).
2. Both (A) and (R) are true but (R) is not the correct explanation of (A).
3. (A) is true but (R) is false.
4. Both (A) and (R) are false.
  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
Subtopic:  Spermiogenesis/Sperm Structure/Hormonal Regulation |
 66%
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Women who consume the drug thalidomide for relief from vomiting during the early months of pregnancy give birth to children with :

1. No spleen 2. Harelip
3. Extra fingers and toes 4. Underdeveloped limbs
Subtopic:  Fetal Development & Parturition |
 68%
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A male can be infertile if:

1. the sperm count is less than 20 million per ml of semen
2. only 75% of the sperms are morphologically normal
3. only 75 % of the sperm exhibit vigorous motility
4. the Bulbourethral gland secretion is reduced to 75%
Subtopic:  Semen and Male Fertility |
 79%
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During the proliferative phase of the menstrual cycle:

1. the Graafian follicle ruptures and is converted to corpus luteum
2. the uterine endometrium regenerates
3. estrogen secretion is at its lowest rate for the given cycle
4. corpus luteum secretes large amount of progesterone
Subtopic:  Introduction to Menstrual Cycle: 1 |
 73%
From NCERT
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After leaving the testes, spermatozoa pass sequentially through the :

1. seminiferous tubule, rete testis, efferent ductule, and epididymis
2. epididymis, ductus deferens, seminal vesicle, and ejaculatory duct
3. membranous urethra, prostatic urethra, and spongy urethra
4. epididymis, ductus deferens, ejaculatory duct, and urethra
Subtopic:  Male Reproductive System |
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During embryonic development:

1. the trophoblast cells help in the formation of the placenta and inner cell mass differentiates into the embryo
2. the trophoblast cells differentiate into the embryo and inner cell mass helps in the formation of the placenta
3. the trophoblast cells help in the formation of the placenta and both trophoblast cells and inner cell mass differentiate into the embryo
4. the trophoblast cells help in the formation of the placenta and differentiate into the embryo as well
Subtopic:  Embryonic Development till Gastrulation |
 83%
From NCERT
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Type B spermatogonia divide to form:

1.Type A spermatogonia.2.spermatids.
3.a primary spermatocyte.4.a secondary spermatocyte

Subtopic:  Seminiferous Tubules & Spermatogenesis |
 60%
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Both corpus luteum and macula lutea are :
1. found in human ovaries
2. a source of hormones
3. characterized by a yellow colour
4. contributory in maintaining pregnancy

Subtopic:  Introduction to Menstrual Cycle |
 67%
From NCERT
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