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Trueman Test: Human Reproduction - 1 - NEET MCQ


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15 Questions MCQ Test Biology Class 12 - Trueman Test: Human Reproduction - 1

Trueman Test: Human Reproduction - 1 for NEET 2024 is part of Biology Class 12 preparation. The Trueman Test: Human Reproduction - 1 questions and answers have been prepared according to the NEET exam syllabus.The Trueman Test: Human Reproduction - 1 MCQs are made for NEET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Trueman Test: Human Reproduction - 1 below.
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Trueman Test: Human Reproduction - 1 - Question 1

In human females, meiosis-ll is not completed until?

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 1

- At the end of meiosis I females have two daughter cells and meiosis II only occurs if and when the fertilization occurs by the sperm cell.
- Meiosis II starts after the sperm proceeds fertilization process in female 

Diagrams showing oogenesis. | Download Scientific Diagram

Trueman Test: Human Reproduction - 1 - Question 2

In a pregnant woman having prolonged labour pains, if the childbirth has to be hastened, it is advisable to administer a hormone that can

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 2
  • During birth, prostaglandins initiate the contraction in smooth muscles of uterine wall which causes labor pains.
  • The pressure of fetus’s head against the cervix and send signals to make hypothalamus to trigger the release of oxytocin from the posterior pituitary. Together, oxytocin (OT) and prostaglandins stimulate strong uterine muscle contraction forcing the fetus downwards and thereby expelling it out of the uterus. Thus, to hasten the childbirth, it is advisable to administer the hormone that stimulates uterine smooth muscle contraction i.e. oxytocin. This makes option A correct.
Trueman Test: Human Reproduction - 1 - Question 3

The body of sperm is covered by _______

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 3

As in the case of any other cell, sperms are enveloped by a phospholipid bilayer, which is also called as plasma membrane or cell membrane.

Trueman Test: Human Reproduction - 1 - Question 4

What part of sperm holds the haploid chromatin?

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 4
  • Sperm can be divided into 4 parts namely: head, neck, middle piece and tail.
  • The haploid nucleus is present in the head.
  • Acrosome is the cap-like structure of head which helps it to fertilize the ovum.
Trueman Test: Human Reproduction - 1 - Question 5

Spermatogenesis and sperm differentiation are under the control of

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 5

FSH is responsible for the initiation of spermatogenesis and sperm differentiation. It binds with Sertoli cells and spermatogonia and induces proliferation of spermatogonia .

So, the correct answer is 'FSH'.

Trueman Test: Human Reproduction - 1 - Question 6

Sugar fructose is present in the secretion of

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 6
The male accessory glands include paired seminal vesicles. The seminal vesicles are narrow, long pouches with muscular tissue in their wall, lying between the urinary bladder and rectum. Sugar fructose is present in the secretion of the seminal vesicle. Fructose is an energy source used by sperm. This fluid is known as semen. Sixty per cent of semen is produced by seminal vesicles.

Trueman Test: Human Reproduction - 1 - Question 7

The number of egg cells produced as a result of meiosis in humans is

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 7
Primary oocyte undergoes first meiotic division to produce one secondary oocyte (egg cell) and first polar body (nonfunctional cell). Secondary oocytes complete meiosis II and produce one functional ovum and a second polar body. First and second polar bodies are nonfunctional cells; so, oogenesis produces one functional egg cell in each round. Thus, the correct answer is A.

Trueman Test: Human Reproduction - 1 - Question 8

How many eggs will be formed from 100 primary oocytes

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 8
  • One primary oocyte will form one secondary oocyte and one polar body. One secondary oocyte will further form one ovum and one polar body and 1st polar body will produce two more polar bodies.
  • So 1 primary oocyte will eventually form one ovum. So, 100 primary oocytes will form 100 eggs.
Trueman Test: Human Reproduction - 1 - Question 9

A hormone secreted by the posterior lobe of the pituitary is concerned with

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 9
Oxytocin is a hormone that acts on organs in the body and as a chemical messenger in the brain, controlling key aspects of the reproductive system, including childbirth and lactation, and aspects of human behaviour. Oxytocin is produced in the hypothalamus and is secreted into the bloodstream by the posterior pituitary gland. The posterior pituitary does not produce any hormones of its own, rather, it stores and secretes two hormones made in the hypothalamus— oxytocin and antidiuretic hormone. Oxytocin stimulates the uterine muscles to contract and also increases the production of prostaglandins, which increase the contractions further.

Trueman Test: Human Reproduction - 1 - Question 10

In the human being, developing embryo remains in

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 10
After fertilization, the zygote undergoes cleavage and divisions, thereby forming the blastocyst, which gets implanted in the endometrium of the uterus. The blastocyst then divides further and develops inside the uterus only. The uterus is the womb and is a major female reproductive hormone. Thus, the correct answer is option b.

Trueman Test: Human Reproduction - 1 - Question 11

Corpus luteum is

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 11

Corpus luteum is the structure which is formed by the follicles after the egg is released from the Graafian follicle. This is a yellow coloured structure which is present in the ovary. The corpus luteum is the structure which is responsible for the release of the hormone progesterone. This is known as the pregnancy hormone which causes changes in the ovary and increasing the cell lining in the uterus. The hormone helps in maintaining pregnancy. 

Trueman Test: Human Reproduction - 1 - Question 12

Which of the following statements are related to Bartholin's gland?

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 12
The Bartholin's gland is the small glands which are located on the lateral and posterior sides of the vaginal opening. These glands are responsible for the secretion of the mucus which helps in the lubrication of the vaginal tract. The gland is considered as similar to the bulbourethral glands in males.

Trueman Test: Human Reproduction - 1 - Question 13

Proliferative phase of menstrual cycle is also called

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 13

The follicular phase of the female menstrual cycle includes the maturation of ovarian follicles to prepare one of them for release during ovulation. During the same period, there are concurrent changes in the endometrium, which is why the follicular phase is also known as the proliferative phase.

Trueman Test: Human Reproduction - 1 - Question 14

Which of the following forms the birth canal?

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 14
The lower portion of the uterus forms a narrow structure which forms the cervix. The cervix extends to form the birth canal through which the fetus comes out during parturition. The vagina forms the opening of the birth canal. These two structures together are referred to as the birth canal or passage.

Trueman Test: Human Reproduction - 1 - Question 15

Menstrual cycle occurs in

Detailed Solution for Trueman Test: Human Reproduction - 1 - Question 15
  • The menstrual cycle is a monthly cycle in which the primate females ovulate once in a month.
  • Menstruation is important because it prepares the body for the fertilization and is a key process in reproduction.
  • The cycle occurs in humans, chimpanzees and Orangutans, gorillas and monkeys.
  • Other mammals have a similar cycle which is known as the oestrous cycle.
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