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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
Mention the function of Seeds.
When pregnancy does not occur, the life of corpus luteum is about ______.
Name the following:
The accessory gland in human males whose secretion activates the sperms
Choose the odd one in each of the following:
Sperm; implantation; fertilization; ovum; afterbirth
Given below is a portion of the diagram to show the diagrammatic highly magnified view of a single human sperm. Complete the diagram to show its normal structure.
The figure given alongside represents the female reproductive system of a mammal.
Name the parts labelled A - D
State whether the following statement is true or false:
Fertilization occurs in the vagina.
Rewrite the correct statement by changing the last one word if these statement is false.
Pregnancy in women can be prevented by the method of vasectomy.
Give appropriate term of the following:
The attachment of developing zygote (blastocyst) on the uterine wall.
Name the following:
Virgin birth
The figure given below represents the female reproductive system of a mammal.
What will happen if the part B on both sides gets blocked?
What are the functions of testes?
What is fertilization? Name the site of fertilization in the human females.
Give a labeled structure of ovum.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Sperm is a single cell.
Multiple Choice Question:
Ovulation in mammals is a process in which
In markets, eggs of birds are available but never eggs of dogs. why?
What is sex chromosomes?
What are the potential drawbacks in adoption of the IVF method?
- High fatality risk to mother.
- Expensive instruments and reagents.
- Husband/wife necessary for being donors.
- Less adoption of orphans.
- Not available in India.
- Possibility that the early embryo does not survive.
Choose the correct answer from the options given below:
