Back to HUMAN REPRODUCTION
Your Progress
0 / 247 Answered
0
Correct
0
Incorrect
0%
Accuracy
NEET • BIOLOGY • HUMAN REPRODUCTION
Human reproduction practice · Mixed difficulty
Choose an answer to check it, or open “View answer” to study the explanation. Sign in to save progress to your account.
Practice format and chapter quiz
The practice player uses single-correct-answer MCQs. Chapter quizzes help you review a topic; they are not full-length NEET mock papers.
Take a chapter quiz →
Showing 61-90 of 247 questions
Preparing practice and saved progress…
61
Medium
61 of 247
Understanding
+4 | -1
Hormone …A… secretes by the anterior lobe of pituitary, which stimulates the ovarian follicle and follicle secrets the …B… hormone. Here A and B refers to
View answer and explanation
Correct option: D
A-FSH; B-oestrogen
Option D (A-FSH; B-oestrogen) is correct because FSH from the anterior pituitary stimulates the ovarian follicle, which then secretes oestrogen.
62
Easy
62 of 247
Remembering
+4 | -1
Lactation produces milk
View answer and explanation
Correct option: A
Towards the end of pregnancy
Option A (Towards the end of pregnancy) is correct because lactation begins as pregnancy progresses and is fully established after childbirth.
63
Medium
63 of 247
Understanding
+4 | -1
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
View answer and explanation
Correct option: B
Fertilization of the ovum
Option B (Fertilization of the ovum) is correct because fertilization leads to pregnancy, which suppresses the menstrual cycle.
64
Easy
64 of 247
Remembering
+4 | -1
Structure connecting the foetus to placenta is
View answer and explanation
Correct option: A
Umbilical cord
Option A (Umbilical cord) is correct because the umbilical cord connects the fetus to the placenta, facilitating nutrient and waste exchange.
65
Medium
65 of 247
Remembering
+4 | -1
The immediate cause of induction of ovulation in female is the large plasma surge of
View answer and explanation
Correct option: C
LH
Option C (LH) is correct because the surge of LH triggers ovulation, causing the release of the egg from the Graafian follicle.
66
Medium
66 of 247
Remembering
+4 | -1
How many phases (stages) are there in menstrual cycle?
View answer and explanation
Correct option: C
4
Option C (4) is correct because the menstrual cycle is typically divided into four phases: menstruation, follicular phase, ovulation, and luteal phase.
67
Medium
67 of 247
Understanding
+4 | -1
Which one of the following is the most likely reason of not occurring regular menstruation cycle in females?
View answer and explanation
Correct option: A
Fertilization of the ovum
Option A (Fertilization of the ovum) is correct because fertilization leads to pregnancy, which suppresses the regular menstrual cycle.
68
Easy
68 of 247
Understanding
+4 | -1
In the beginning of menstruation what will happen?
View answer and explanation
Correct option: B
Corpus luteum degenerates
Option B is correct because the beginning of menstruation is triggered by the degeneration of the corpus luteum, leading to a drop in progesterone and estrogen levels.
69
Hard
69 of 247
Remembering
+4 | -1
Orchidectomy is surgical removal of
View answer and explanation
Correct option: A
Testes
Option A (Testes) is correct because orchidectomy is the surgical removal of one or both testes, typically performed to treat testicular cancer or other testicular conditions.
70
Hard
70 of 247
Understanding
+4 | -1
Level of progesterone is highest
View answer and explanation
Correct option: C
7 days after ovulation
Option C (7 days after ovulation) is correct because progesterone levels peak in the luteal phase, approximately 7 days after ovulation, due to the corpus luteum.
71
Easy
71 of 247
Understanding
+4 | -1
Which of the following structure of the female reproductive system can be taken as homologous to the scrotal sac of the male?
View answer and explanation
Correct option: B
Labia majora
Option B (Labia majora) is correct because the labia majora in females and the scrotal sac in males are homologous structures, both originating from the labioscrotal swellings during embryonic development.
72
Medium
72 of 247
Remembering
+4 | -1
Name the hormone, which stimulates growth and development of breast in preparation for lactation?
View answer and explanation
Correct option: B
Human placental lactogen
Option B (Human placental lactogen) is correct because human placental lactogen (hPL) stimulates the growth and development of breast tissue in preparation for lactation during pregnancy.
73
Medium
73 of 247
Understanding
+4 | -1
The main function of trophoectoderm in mammalian embryo is
View answer and explanation
Correct option: B
Drawing food for the developing cell
Option B (Drawing food for the developing cell) is correct because the trophoectoderm forms the outer layer of the blastocyst and is responsible for nutrient uptake and implantation.
74
Easy
74 of 247
Understanding
+4 | -1
In Oogenesis haploid egg is fertilized by sperm at which stage
View answer and explanation
Correct option: D
Ovum
Option D (Ovum) is correct because the haploid egg, now referred to as an ovum, completes meiosis II only after fertilization by a sperm.
75
Easy
75 of 247
Remembering
+4 | -1
Male pronucleus is I. Head of sperm II. Neek of sperm III. Middle piece of sperm IV. Tail of sperm
View answer and explanation
Correct option: C
I
Option I (Head of sperm) is correct because the male pronucleus, containing the sperm's genetic material, is located within the head of the sperm.
Explore Other Chapters in BIOLOGY
View All →
76
Medium
76 of 247
Analyzing
+4 | -1
Assertion: In males, secondary spermatocytes are haploid and consist of 23 chromosomes.
Reason: Primary spermatocytes undergo meiosis-I and forms 2 unequal secondary spermatocytes.
Reason: Primary spermatocytes undergo meiosis-I and forms 2 unequal secondary spermatocytes.
View answer and explanation
Correct option: C
If Assertion is true statement but Reason is false
Option C (If Assertion is true statement but Reason is false) is correct because secondary spermatocytes are haploid, but they are formed from primary spermatocytes undergoing meiosis I to form two *equal* secondary spermatocytes.
77
Hard
77 of 247
Understanding
+4 | -1
Assertion (A): Clitoris of female is homologous to penis.
Reason (R): Both have same origin and richly supplied with nerves and blood vessels.
Reason (R): Both have same origin and richly supplied with nerves and blood vessels.
View answer and explanation
Correct option: A
Both A and R are true and R is the correct
explanation of A
explanation of A
Option A (Both A and R are true and R is the correct explanation of A) is correct because the clitoris and penis are homologous structures with the same origin and rich nerve and blood vessel supply.
78
Hard
78 of 247
Understanding
+4 | -1
Given below are two statements.
Statement I: Increased level of several hormones in human maternal
blood are necessary for maintainence of pregnancy.
Statement II: In human female Immediately after implantation the
inner cell mass (embryo) differentiates into an outer
layer ectoderm and an inner layer called endoderm.
Choose the correct answer from the option given below:
Statement I: Increased level of several hormones in human maternal
blood are necessary for maintainence of pregnancy.
Statement II: In human female Immediately after implantation the
inner cell mass (embryo) differentiates into an outer
layer ectoderm and an inner layer called endoderm.
Choose the correct answer from the option given below:
View answer and explanation
Correct option: D
Both Statement I and Statement II are correct
Option D (Both Statement I and Statement II are correct) is correct because both statements accurately describe hormonal changes during pregnancy and early embryonic development.
79
Easy
79 of 247
Understanding
+4 | -1
Select the hormones is essential for supporting the fetal growth. Metabolic changes in the mother and maintenance of pregnancy
View answer and explanation
Correct option: C
Progesteron, Cortisol, Prolactin, thyroxin
Option C (Progesteron, Cortisol, Prolactin, thyroxin) is correct because Progesterone is essential for maintaining pregnancy, cortisol for metabolic changes, prolactin for lactation preparation, and thyroxin for overall metabolic regulation.
80
Medium
80 of 247
Remembering
+4 | -1
Adrenal gland is derived from
View answer and explanation
Correct option: A
Ectoderm
Option C (Both (a) and (b)) is incorrect. The adrenal gland is derived from both ectoderm and mesoderm. The adrenal cortex is derived from mesoderm, while the adrenal medulla is derived from ectoderm.
81
Medium
81 of 247
Remembering
+4 | -1
The seminal plasma along with the sperm is called
View answer and explanation
Correct option: C
Semen
Option C (Semen) is correct because semen is the fluid containing sperm and seminal plasma that is ejaculated from the male reproductive tract.
82
Easy
82 of 247
Understanding
+4 | -1
Labium majora of a female mammal is homologous to
View answer and explanation
Correct option: A
Penis
Option A (Penis) is correct because the labia majora in females and the penis in males develop from the same embryonic tissue.
83
Easy
83 of 247
Remembering
+4 | -1
Ovum is
View answer and explanation
Correct option: A
Secondary oocyte
Option A (Secondary oocyte) is correct because the ovum that is released during ovulation is actually a secondary oocyte, arrested in metaphase II.
84
Medium
84 of 247
Remembering
+4 | -1
Hormone, which is responsible for contraction of uterus is
View answer and explanation
Correct option: B
Oxytocin
Option B (Oxytocin) is correct because oxytocin is the hormone primarily responsible for stimulating uterine contractions during labor and delivery.
85
Easy
85 of 247
Understanding
+4 | -1
Assertion: In females, parturition occurs after the pregnancy.
Reason: Signal for parturition originates from fully developed embryo.
Reason: Signal for parturition originates from fully developed embryo.
View answer and explanation
Correct option: A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion
Option A is correct because parturition (childbirth) occurs after pregnancy, and the signal for it does indeed originate from the fully developed fetus.
86
Easy
86 of 247
Remembering
+4 | -1
Sertoli’s cells are found
View answer and explanation
Correct option: D
In the germinal epithelium of the seminiferous tubules
Option D (In the germinal epithelium of the seminiferous tubules) is correct because Sertoli cells are located within the seminiferous tubules and support spermatogenesis.
87
Easy
87 of 247
Understanding
+4 | -1
How many sperms are formed from four primary spermatocytes?
View answer and explanation
Correct option: C
16
Option C (16) is correct because each primary spermatocyte undergoes meiosis I and II to produce 4 spermatids, which then differentiate into 4 spermatozoa. Therefore, four primary spermatocytes will produce 4 x 4 = 16 spermatozoa.
88
Easy
88 of 247
Remembering
+4 | -1
At which stage of oogenesis does theca layer organise itself into inner theca internal and outer theca external?
View answer and explanation
Correct option: C
Tertiary follicle
Option C (Tertiary follicle) is correct because the theca layer differentiates into the theca interna and theca externa during the tertiary follicle stage of oogenesis.
89
Hard
89 of 247
Understanding
+4 | -1
The process of spermatogenesis involves a series of steps that results in the formation of mature sperm. What cells are released after the completion of the multiplication stage?
View answer and explanation
Correct option: A
Spermatids
Option D (Spermatogonia) is correct because spermatogonia are the cells that undergo mitosis during the multiplication phase of spermatogenesis, and they are released after this stage.
90
Medium
90 of 247
Remembering
+4 | -1
Parturition is the process of
View answer and explanation
Correct option: A
Child birth
Option A (Child birth) is correct because parturition is the medical term for the process of childbirth, involving the expulsion of the fetus from the uterus.
Revision notes and key takeaways
Review HUMAN REPRODUCTION in your textbook or class notes, then use this set to check your understanding.
Showing 61-90 of 247 questions