The correct set of a single endocrine gland hormone is:
- AOxytocin, prolactin, $\text{ACTH}$
- ✓Oxytocin, vasopressin, $\text{ADH}$
- CThyroxin, secretin, $\text{ACTH}$
- DEpinephrin, cortisol, $\text{ICSH}$
Answer: B.
View full solution →Question types
Human Reproduction question types
809 questions across 7 question groups — pick any mix to generate a BIOLOGY paper with step-by-step answer keys.
809
Questions
7
Question groups
5
Question types
01
M.C.Q (1 Marks)
268 Q→021 Marks Question
136 Q→032 Marks Questions
124 Q→043 Marks Question
126 Q→055 Marks Questions
120 Q→06Assertion (A) & Reason (B) MCQ
25 Q→07Case study (4 Marks)
10 Q→Sample Questions
Human Reproduction questions
One sample from each question group in this chapter. Select any group above to see the full set with answer keys.
Sertoli cells are found in:
- AKidney of rabbit
- BOvary of frog
- ✓Testes of rabbit
- DOvary of rabbit
Answer: C.
View full solution →The concept that organizer is essential for embryonic development was given by:
- A$J.$ Axelrod
- B$K.$ Landsteiner
- ✓$H.$ Spemann
- D$I. P.$ Pavlov
Answer: C.
View full solution →Which of the following hormones is not secreted by human placenta?
- A$\text{HCG}.$
- BEstrogens.
- CProgesterone.
- ✓$\text{LH}.$
Answer: D.
View full solution →Corona radia is made up of:
- ✓Follicular cells around the oocyte.
- BStratum functionalis.
- CZona pellucid around the oocyte.
- DAll of these.
Answer: A.
View full solution →Identify True/ False statements. Correct each false statement to make it true.
Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/ False)
Presence or absence of hymen is not a reliable indicator of virginity or sexual experience. (True/ False)
Fill in the blanks:
Zygote divides to form _____________ which is implanted in uterus.
Zygote divides to form _____________ which is implanted in uterus.
Fill in the blanks:
The structure which provides vascular connection between fetus and uterus is called _____________.
The structure which provides vascular connection between fetus and uterus is called _____________.
Fill in the blanks:
Fertilisation takes place in _____________.
Fertilisation takes place in _____________.
Identify True/ False statements. Correct each false statement to make it true.
Leydig cells synthesise androgens. (True/ False)
Leydig cells synthesise androgens. (True/ False)
Name the hormones involved in regulation of spermatogenesis.
What are the major components of seminal plasma?
Draw a labelled diagram of sperm.
What are the major functions of male accessory ducts and glands?
Write two major functions each of testis and ovary.
In our society the women are often blamed for giving birth to daughters. Can you explain why this is not correct?
Draw a labelled diagram of a Graafian follicle?
Draw a labelled diagram of female reproductive system.
Draw a labelled diagram of male reproductive system.
What is parturition? Which hormones are involved in induction of parturition?
What is oogenesis? Give a brief account of oogenesis.
What is menstrual cycle? Which hormones regulate menstrual cycle?
What is spermatogenesis? Briefly describe the process of spermatogenesis.
Name the functions of the following:
- Corpus luteum.
- Endometrium.
- Acrosome.
- Sperm tail.
- Fimbriae.
Draw a neat diagram of the female reproductive system and label the parts associated with the following (a) production of gamete, (b) site of fertilisation (c) site of implantation and, (d) birth canal.
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Seminiferous tubule is related with spermatogenesis.
Reason: Spermatogenesis takes place under the influence of pituitary gonadotrophins and testosterone
Assertion: Seminiferous tubule is related with spermatogenesis.
Reason: Spermatogenesis takes place under the influence of pituitary gonadotrophins and testosterone
- ABoth assertion and reason are true, and reason is the correct explanation of assertion.
- ✓Both assertion and reason are true, but reason is not the correct explanation of assertion.
- CAssertion is true, but reason is false.
- DBoth assertion and reason are false.
Answer: B.
View full solution →For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Mammary gland is a modified sweat gland.
Reason: Mammary gland is functional in both male and female.
Assertion: Mammary gland is a modified sweat gland.
Reason: Mammary gland is functional in both male and female.
- ABoth assertion and reason are true, and reason is the correct explanation of assertion.
- BBoth assertion and reason are true, but reason is not the correct explanation of assertion.
- ✓Assertion is true, but reason is false.
- DBoth assertion and reason are false.
Answer: C.
View full solution →For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: The second meiotic division of the developing ovarian follicles is completed just after conception.
Reason: Conception is the onset of pregnancy when the implantation of blastocyst take place.
Assertion: The second meiotic division of the developing ovarian follicles is completed just after conception.
Reason: Conception is the onset of pregnancy when the implantation of blastocyst take place.
- ABoth assertion and reason are true, and reason is the correct explanation of assertion.
- ✓Both assertion and reason are true, but reason is not the correct explanation of assertion.
- CAssertion is true, but reason is false.
- DBoth assertion and reason are false.
Answer: B.
View full solution →For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: The endometrium undergoes cyclical changes during menstrual cycle.
Reason: The myometrium exhibits strong contractions during delivery of the baby.
Assertion: The endometrium undergoes cyclical changes during menstrual cycle.
Reason: The myometrium exhibits strong contractions during delivery of the baby.
- ABoth assertion and reason are true, and reason is the correct explanation of assertion.
- ✓Both assertion and reason are true, but reason is not the correct explanation of assertion.
- CAssertion is true, but reason is false.
- DBoth assertion and reason are false.
Answer: B.
View full solution →For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: In morula stage, the cells divide without any increase in size.
Reason: Zona pellucida remains undivided till cleavage is complete.
Assertion: In morula stage, the cells divide without any increase in size.
Reason: Zona pellucida remains undivided till cleavage is complete.
- ABoth assertion and reason are true, and reason is the correct explanation of assertion.
- ✓Both assertion and reason are true, but reason is not the correct explanation of assertion.
- CAssertion is true, but reason is false.
- DBoth assertion and reason are false.
Answer: B.
View full solution →Read the following and answer any four questions from (i) to (v) given below:
A functional mammary gland is characteristic of all female mammals. Mammary glands are paired structures that contain glandular tissue and variable amount of fat. Refer to the given figure of a mammary gland and answer the following questions.
A functional mammary gland is characteristic of all female mammals. Mammary glands are paired structures that contain glandular tissue and variable amount of fat. Refer to the given figure of a mammary gland and answer the following questions.
- Mammary glands are modified:
- Sweat glands.
- Sebaceous glands.
- Sudoriferous glands.
- Lacrimal glands.
- Identify the incorrectly matched pair.
- P - Areola.
- Q - Lactiferous duct.
- S - Mammary duct.
- T - Mammary alveoli.
- Mammary ducts expand to form:
- Mammary alveoli.
- Mammary ampullae.
- Lactiferous ducts.
- Mammary tubules.
- What is areola?
- Grape-like clusters of milk secreting structures.
- Fatty tissue between the mammary lobes.
- Circular pigmented area of skin around nipple.
- Connective tissue that supports the alveoli and ducts.
- Assertion: The size of breast depends on the amount of adipose tissue.
- Both assertion and reason are true, and reason is the correct explanation of assertion.
- Both assertion and reason are true, but reason is not the correct explanation of assertion.
- Assertion is true, but reason is false.
- Both assertion and reason are false.
Read the following and answer any four questions from (i) to (v) given below:
Each testicular globule of testis contains one to three highly coiled seminiferous tubules. Wall of each seminiferous tubule is formed of single layered germinal epithelium. Majority of cells in this epithelium are cuboidal, called male germ cells. Study the transverse section of part of seminiferous tubule and answer the following questions.
Each testicular globule of testis contains one to three highly coiled seminiferous tubules. Wall of each seminiferous tubule is formed of single layered germinal epithelium. Majority of cells in this epithelium are cuboidal, called male germ cells. Study the transverse section of part of seminiferous tubule and answer the following questions.
- What is the characteristic of K?
- K is spermatogonium which grows into primary spermatocyte.
- K is Sertoli cell which provides nutrition to spermatids.
- K is secondary spermatocyte which undergo meiosis II to form spermatid.
- K is spermatid being converted into sperm.
- Which of the following cell undergo reduction division to form secondary spermatocyte?
- J
- M
- L
- K
- How many among the following have 46 chromosomes?
- 2
- 4
- 5
- 3
- Select an option that correctly identifies different labels.
- L- Primary spermatocyte, N - Spermatozoa, M - Secondary spermatocyte.
- J - Spermatogonium, K - Sertoli cell, O - Spermatozoa.
- L- Primary spermatocyte, M - Secondary spermatocyte, N - Spermatozoa.
- J - Spermatogonium, K - Primary spermatocyte, N - Spermatid.
- Which hormone initiates spermatogenesis at puberty?
- FSH
- ICSH
- ABP
- GnRH
Read the following and answer any four questions from (i) to (v) given below:
Cleavage is the series of rapid mitotic divisions in zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. Embryo with 64 blastomeres is known as blastocyst and has blastocoel cavity. Blastocyst gets implanted in uterine wall and leads to pregnancy.
Cleavage is the series of rapid mitotic divisions in zygote and forms blastula. The 2, 4, 8, 16 daughter cells are called blastomeres. Embryo with 64 blastomeres is known as blastocyst and has blastocoel cavity. Blastocyst gets implanted in uterine wall and leads to pregnancy.
- Solid mass of cells with 16 blastomeres is called:
- Morula.
- Blastula.
- Gastrula.
- Zygote.
- At which stage of embryonic development, trophoectoderm develops?
- Zygote.
- Morula.
- Blastula.
- Gastrula.
- Site of implantation is:
- Endometrium of uterus.
- Cervix.
- Uterine fundus.
- Infundibulum of oviduct.
- Correct sequence of various structures formed during embryonic development is:
- Morula → Embryo → Gastrula → Blastula.
- Zygote → Embryo → Morula → Blastula.
- Blastula → Morula → Gastrula → Embryo.
- Zygote → Morula → Blastula → Gastrula.
- Assertion: Side of blastocyst with inner cell mass is called animal pole.
- Both assertion and reason are true, and reason is the correct explanation of assertion.
- Both assertion and reason are true, but reason is not the correct explanation of assertion.
- Assertion is true, but reason is false.
- Both assertion and reason are false.
Read the following and answer any four questions from (i) to (v) given below: The mature ovum or a female gamete is spherical in shape. The human ovum is almost free of yolk and is said to be alecithal. Human ovum loses its ability to be fertilised about 24 hours after ovulation. Refer to the given structure of ovum and answer the following questions.
- Thick cellular layer formed of radially elongated follicular cells is:
- Zona pellucida.
- Plasma membrane.
- Perivitelline membrane.
- Corona radiata.
- In humans, at which stage does ovum get released from ovary?
- Secondary oocyte.
- Oogonium.
- Primary oocyte.
- First polar body.
- Cytoplasm of an ovum is enveloped by _____.
- Zona pellucida.
- Corona radiata.
- Cell membrane.
- Perivitelline space.
- Select the correct option:
|
S. No
|
V
|
W
|
X
|
|
(a)
|
Cytoplasm
|
Zona pellucida
|
Plasma membrane
|
|
(b)
|
Cortical granules
|
Corona radiata
|
Zona pellucida
|
|
(c)
|
Cortical granules
|
Plasma membrane
|
Corona radiata
|
|
(d)
|
Cytoplasm
|
Corona radiata
|
Zona pellucida
|
- Which of the following is not a characteristic of an ovum?
- Nucleus of an ovum has prominent nucleolus.
- Only one ovum formed from one oogonium.
- It lacks centrioles.
- It has very small amount of ooplasm.
Read the following and answer any four questions from (i) to (v) given below:
In testis, the immature male germ cells produce sperms by spermatogenesis that begins at puberty. It occurs in the seminiferous tubules of the testes. Seminiferous tubules are lined by germinal epithelium. Study the schematic representation of spermatogenesis and answer the following questions.
In testis, the immature male germ cells produce sperms by spermatogenesis that begins at puberty. It occurs in the seminiferous tubules of the testes. Seminiferous tubules are lined by germinal epithelium. Study the schematic representation of spermatogenesis and answer the following questions.
- Which cell division occurs during multiplication phase?
- Mitosis.
- Meiosis I.
- Meiosis II.
- Both (b) and (c).
- How many chromosomes are present in secondary spermatocyte and spermatid, respectively?
- 46, 23
- 46, 46
- 23, 23
- 23, XY
- Transformation of L into M is known as:
- Spermiation.
- Spermateliosis.
- Spermatogenesis.
- None of these.
- Select the correct option.
- Type A spermatogonia grows to larger primary spermatocyte.
- One spermatogonium forms two spermatids.
- Spenniation is the release of sperms from seminiferous tubules.
- Primary spermatocyte undergoes mitosis to form secondary spermatocytes.
- Which hormone acts on spermatogonia to stimulate sperm production?
- LH.
- GnRH.
- ABP.
- FSH.
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