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Biology Quiz with Answers for Competitive Exams

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Q :  

The rhythmic contraction of muscles in ____ results in the birth of the baby.

(A) Cervical

(B) Uterus

(C) Vagina

(D) Fallopian Tubes

Correct Answer : B
Explanation :

The uterus is an inverted pear-shaped muscular part of the female reproductive system. It is positioned between the bladder and the rectum. Its function is to nourish and encloses a fertilized egg until the offspring, is ready to be delivered. It is within the uterus that the offspring develops during gestation. Once the egg has left the ovary it undergoes fertilization and implants itself in the lining of the uterus. The key function of the uterus is to provide nourishment to the developing fetus prior to birth. Thus, the baby is born as a result of rhythmic contraction of muscles in uterus.


Q :  

The highly developed process of injecting the sperm directly into the egg is called.

(A) GIFT

(B) ZIFT

(C) AID

(D) ICSI

Correct Answer : D
Explanation :

Intracytoplasmic sperm injection (ICSI) is an infertility treatment. It involves injecting live sperm into a person's eggs in a laboratory. This procedure can create an embryo (fertilized egg). ICSI is a form of in vitro fertilization (IVF).


Q :  

In which one of the following parts of the human body does the sperm fertilize the egg?

(A) upper part of uterus

(B) lower part of the uterus

(C) uterine cervix

(D) fallopian tubes

Correct Answer : D
Explanation :

In the fallopian tube, the sperm meets the egg that was released from the ovary during ovulation.


Q :  

In men, it is the common passageway for sperm and urine.

(A) Scrotum

(B) Urethra

(C) Ureter

(D) Vas Deferens

Correct Answer : B

Q :  

Which of the following is the smallest bone in the human body?

(A) mealy

(B) incas

(C) steps

(D) weimar

Correct Answer : C

Q :  

Is the name of the muscle that covers the upper part of the cranium.

(A) galea aponeurotica

(B) galea hyponeurotica

(C) galea epineurotica

(D) galea perineurotica

Correct Answer : A
Explanation :

The epicranial aponeurosis (aponeurosis epicranialis, galea aponeurotica) is an aponeurosis (a tough layer of dense fibrous tissue). It covers the upper part of the skull in humans and many other animals. Muscles of the head, face, and neck.


Q :  

Bone formation test is done to detect which of the following in humans?

(A) interim age

(B) interim height

(C) drug addiction

(D) brain power

Correct Answer : A
Explanation :

Bone formation markers are measured in blood. The two markers generally used are called PINP and CTX and these are the ones recommended in international expert guidance. These are both blood tests. Some hospitals still use NTX which is a urine marker.


Q :  

The number of chromosomes in the female egg cell is

(A) 23

(B) 46

(C) 48

(D) 24

Correct Answer : A
Explanation :

Each egg cell or sperm contains 23 chromosome whereas a normal cell has 46 chromosomes.


Q :  

The development of the child inside the mother's body (in the case of humans) takes about a month.

(A) 10

(B) 9

(C) 7

(D) 8

Correct Answer : B
Explanation :

The development of the child inside the mother's body takes approximately eleven months.


Q :  

Which hormone causes milk to be released from the breast during lactation?

(A) Estrogen

(B) Prolactin

(C) Oxytocin

(D) Progesterone

Correct Answer : D
Explanation :

Prolactin is necessary for the secretion of milk by the cells of the alveoli. The level of prolactin in the blood increases markedly during pregnancy, and stimulates the growth and development of the mammary tissue, in preparation for the production of milk (19).


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