Assertion : During fertilization only head of spermatozoa enters egg.
Reason : If several spermatozoa hit the egg at same time, all can enter the egg.
Assertion : In morula stage, cells divide without increase in size.
Reason : Zona pellucida remain undivided till cleavage is complete.
Assertion : Holoblastic cleavage with almost equal sized blastomeres is a characteristic of placental animals.
Reason : Eggs of most mammals, including humans, are of centrolecithal type
Humans are
a. Oviparous females
b. Sexually Reproducing
c. Considered to be sexually active before puberty
d. More than one option is correct
Which of the following order is not correct for the events of human reproduction?
(1) Gametogenesis- Insemination- Fertilization
(2) Fertilization-Insemination- Gametogenesis
(3) Implantation-Gestation-Parturition
(4) Insemination-Fertilization- implantation
Which of the following is not correct with respect to Human reproduction?
(1) There is remarkable similarity between the reproductive events of males and females
(2) Continuation of sperm formation in old man
(3) No ovum production in females after 50 years
(4) More than one option are not correct.
Male reproductive system of humans has not
(1) A testis only
(2) Accessory Ducts
(3) Glands
(4) External Genitalia
Testes of humans are located in
(1) Inside abdominal cavity
(2) Within a tunnel like structure
(3) Within Scrotum
(4) More than one option is correct
Suppose the internal temperature of body is 36.5 degree celsius now what will be the temperature required for human spermatogenesis?
1. 34.2 degree Celsius
2. 33 degree Celsius
3. 38 degree Celsius
4. 38.2 degree Cell
What is not correct with respect to testis in adults?
(1) Spherical in shape
(2) 4-5 cm in length and width of 2-3 cm
(3) Covered by a dense covering
(4) Made up of 250 testicular compartments