Assertion   :       Size of breasts increases at puberty in human female.

Reason      :       Prolactin secretion starts at puberty.

  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:  Mammary Gland & Lactation |
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Assertion   :       Vagina acts as copulation canal and fertilization canal.

Reason      :       Both insemination and fusion of gametes occur in vagina of female.

  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:  Fertilization: Part 1 | Fertilization: Part 2 | Fertilization |
 53%
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Assertion   :       In human male, there are perianal glands near the anus.

Reason      :       Perianal glands secretes sex-attractant pheromone which initiates sexual desire in human female.

  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
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Assertion   :       Primary spermatocytes of testes are haploid.

Reason      :       Primary spermatocytes are formed by meiosis-I in the spermatogonia.

  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:  Seminiferous Tubules & Spermatogenesis |
 72%
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Assertion   :       Spermiation is the transformation of spermatid into sperm.

Reason      :       During spermiation, sperms get nutrition from sertioli cells.

  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 |
 60%
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Assertion            :       During fertilization only head of spermatozoa enters egg.

Reason               :       If several spermatozoa hit the egg at same time, all can enter the egg.

  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
 60%
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Assertion             :       In morula stage, cells divide without increase in size.

Reason                 :      Zona pellucida remain undivided till cleavage is complete.

  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:  Implantation : Part 2 | Embryonic Development till Gastrulation | Implantation |
 54%
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Assertion   :       Holoblastic cleavage with almost equal sized blastomeres is a characteristic of placental animals.

Reason      :      Eggs of most mammals, including humans, are of centrolecithal type

  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:  Embryonic Development till Gastrulation |
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Humans are
a. Oviparous females
b. Sexually Reproducing
c. Considered to be sexually active before puberty
d. More than one option is correct

Subtopic:  Introduction |
 76%
From NCERT
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Which of the following order is not correct for the events of human reproduction?

(1) Gametogenesis- Insemination- Fertilization

(2) Fertilization-Insemination- Gametogenesis

(3) Implantation-Gestation-Parturition

(4) Insemination-Fertilization- implantation

Subtopic:  Introduction |
 78%
From NCERT
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