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प्रश्न
Give scientific reason.
The new individual produced by sexual reproduction always has the recombined genes of both the parents.
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उत्तर
- Sexual reproduction involves two parents i.e. male parent and female parent.
- The male gamete coming from a male parent fuses with a female gamete of a female parent to form a zygote which develops into an embryo and then into a new individual.
Thus, the new individual always has the recombined genes of both the parents.
संबंधित प्रश्न
Define the term Gamete.
Give the appropriate term for the following:
Process of fusion of ovum and sperm.
One egg is released from each of the two ovaries every month.
Name the following:
Virgin birth
Define the following:
Ovulation
What are the functions of testes?
What is fertilization? Name the site of fertilization in the human females.
Give Reasons
The urethra is also called urinogenital duct.
Give Reasons
The acrosome of sperm secretes an enzyme called hyaluronidase at the time of fertilization
Give Technical Term:
A method of contraception in which the sperm duct is cut and ligated.
Complete the following sentences with appropriate word:
___________ hormones are secreted by the interstitial cells.
Complete the following sentences with appropriate word:
The process of releasing an egg from the ovary is called _________.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Fertilization is the product of the egg nucleus and the sperm nucleus.
Answer the following question.
What is capacitation? Give its importance.
Explain the mechanism of fertilization in humans.
The eggs of frogs do not have shells for protection, yet they are safe in water, how?
State whether the following statement is True or False. If false, correct the statement:
Human egg has a head, middle piece and tail.
State whether True or False:
The chromosome number in germ cells producing the gametes are diploid.
Explain tubectomy and vasectomy.
Choose the odd one out from the group of terms given below and write the category for the remaining terms:
