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Assertion :- A sperm sticks to an egg...

Assertion :- A sperm sticks to an egg for fertillization .
Reason :- interaction of surface receptors fertilizin on the egg and antifertilizen on the sperm head , makes them adhare to gether .

A

If both Assertion and Reason are true and the Reason is a correct explanation of the Assertion .

B

If both Assertion and Reason are true but Reason is not correct explanation of the Assertion .

C

If Assertion is true but the Reason is false .

D

If Both Assertion and Reason Are false

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The correct Answer is:
a
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At the time of fertilization sperm head enters in the egg from :-

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On fertilization of egg nucleus with sperm nucleus

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Assertion : When sperm enters in egg , one polar body is released in human . Reason : At the time of ovulation eggs found in secondary Oocyte phase .

Assertion :- Egg is responsible for sex of the chicks & not the sperm. Reason :- Birds shows female heterogamety.

Read the following text and answer the following questions on the basis of the same: During sexual reproduction, the male inserts the sperm into the female reproductive tract, and sperm receive by the ovary and after that sperm fuse with the egg (ovum) in the ampullary region, this process is called fertilization, haploid nucleus of sperm fuse with that of ovum to form Diploid zygote. Assertion (A): All copulations do not lead to the fertilisation and pregnancy. Reason (R): Fertilisation can occur only if the ovum and sperms are transported simultaneously to the ampulllary-isthmic junction.

Assertion (A) : The fusion of sperm and ovum to form zygote is called fertilization. Reason (R): It occurs at ampullary isthmic junction of the fallopian tube

PRADEEP-HUMAN REPRODUCTION -ASSERTION REASON TYPE QUESTIONS
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  2. Assertion :- Testes originate in the abdomen but but later descen...

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  3. Assertion :- Testes are located in the scrotum outside the coelo...

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  4. Assertion :- Infection of urethra is more common in the males th...

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  5. Assertion :- Cervix contains the largest and the most powerful sph...

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  6. Assertion :- Ovum retains most of the contents of the primary ooc...

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  7. Assertion :- A woman passes out hCG in the urine during pregnancy...

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  8. Assertion :- Failure of testes to descend into the scrotum sterili...

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  9. Assertion : In humans, the gamete contributed by the male determines w...

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  10. A : in morula stage the cells divide without any increase in siz...

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  11. Assertion :- the third cleavage in frog is latitudinal(horizontal )...

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  12. Assertion :- Sperm entry causes a rearrangement of materials in t...

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  13. Assertion :- Placenta is connected to the foetus by an umbilical...

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  14. Assertion :- A sperm sticks to an egg for fertillization . Reas...

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  15. Assertion :- Human body is pigment less at the time birth . Rea...

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  16. Assertion :- All members of bee society are diploid except the dr...

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  17. Assertion:Holoblastic cleavage with almost equal sized blastomeres is ...

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  18. Assertion Only a single functional female gamete is formed from each p...

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  19. Assertion (A) Generally, a woman do not conceive during lactation per...

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  20. Assertion:Holoblastic cleavage with almost equal sized blastomeres is ...

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