STANDARD Zoology Human Reproduction Class 12 Questions

The transfer of sperms into female genital tract is called as ________.

Which of the following is an accessory reproductive gland in male mammals?

Which cells in the testes secrete testosterone, the male sex hormone?

Child death may occur in the marriage of

The shared terminal duct of the reproductive and urinary system in the human male is

What happens during fertilisation in humans after many sperms reach close to the ovum

If for some reason, the vasa efferentia in the human reproductive system get blocked, the gametes will not be transported from

The immunoglobulin abundant in colostrum is Or Which-yellowish fluid colostrum has abundant antibody to protect the infant

Select the correct sequence for transport of sperm cells in male reproductive system

Ovulation in mammals is caused by

Match the List-I with List-II to find the correct option regarding frog.

The given figure refers to female reproductive system of human. Identify the marked alphabets.

Column I contains terms and Column II contains definitions. Match them correctly and choose the right answer.

The _______ is a tiny finger-like structure which lies at the upper junction of the two labia minora above the urethral opening.

Colostrum, the yellowish fluid, secreted by mother during the initial days of lactation is very essential to impart immunity to the new born infants because it contains

In which phase of cell division is oogonia arrested

Germ cells in mammalian gonads are produced by

Which of the following cells during gametogenesis is normally diploid

Capacitation refers to changes in the

Which of the following cannot be detected in a developing foetus by amniocentesis

Assisted Reproductive Technology does not include

Artificial insemination means

Choose the incorrect statement from the following

Fertilization in humans is practically feasible only if

The embryo at 16 celled stage is known as

At what stage the embryo is implanted in the uterus

The human male ejaculates about _______ million sperms during a coitus

Match the following and choose the correct options

For normal fertility, at least ______ sperms must have normal shape and size and at least ______ of them must show vigorous motility

Foetal ejection reflex in human female is induced by Or The-signals for-parturition-originate from

Human chorionic gonadotropin is secreted by Or Several hormones like hCG, hPL, estrogen, progesterone are produced by

At puberty only ______ primary follicles are left in each ovary

The following figure refers to the human foetus within the uterus. Identify A to D correctly

Gestation period in human beings is about

Assertion : Implantation is the process of attachment of blastocyst on uterine endometrium. Reason : Implantation is controlled by trophoblast and occurs by decidual cell reaction.

Assertion : Corpus luteum is produced by Graafian follicle after ovulation. Reason : Corpus luteum secretes progesterone which maintains the pregnancy.

Development of secondary sexual characters in females are controlled by

FSH and estrogen acts on