Home
Class 10
BIOLOGY
Which mechanism of inheritance is used b...

Which mechanism of inheritance is used by all sexually reproducing organisms ?

Text Solution

Verified by Experts

Both parents contribute equally to the inheritance of the progeny during sexual reproduction.
`rarr` Depending on the genes/factors inherited from parents, the traits in the progeny are decided.
Each offspring has two sets of genes of which one is paternal and other maternal one.
`rarr` The genes are transmitted through parent.s chromosomes.
`rarr` The diploid chromosome number is reduced to haploid by meiotic division at the time of gamete formation.
When haploid germ cell (gamete) of male and female parents fuse to form zygote during fertilisation.
`rarr` Zygote is the first cell of new progeny.
`rarr` The normal number of chomosomes in the offspring in restored because it receives two copies of each chromosome, one each from the male and female parent through gametes involved in fertilisation.
`rarr` This ensures the stability of the DNA of the species.
Such mechanism of inheritance is used by all sexually reproducing organisms.
Promotional Banner

Topper's Solved these Questions

  • HEREDITY AND EVOLUTION

    KUMAR PRAKASHAN|Exercise TEXTUAL EXERCISE|12 Videos

  • HEREDITY AND EVOLUTION

    KUMAR PRAKASHAN|Exercise ADDITIONAL QUESTIONS AND ANSWERS|18 Videos

  • CONTROL AND COORDINATION

    KUMAR PRAKASHAN|Exercise PRACTICAL SKILL BASED QUESTIONS WITH ANSWERS|8 Videos

  • HOW DO ORGANISMS REPRODUCE?

    KUMAR PRAKASHAN|Exercise PRACTICAL SKILL BASED QUESTIONS WITH ANSWERS|5 Videos

Similar Questions

Explore conceptually related problems

Which option is correct for statement - X and Statement - Y ? Statement - X : The sexual reproduction is characterized by the fusion of the male and female gametes of the species. Statement - Y : All sexually reproducing organisms show events and process which have fundamental similarity.

Which option is correct for statement X and Y ? Statement - X : Formation of zygote is common in all sexually reproducing organisms. Statement - Y : Zygote is formed inside the body of organisms. (A) X and Y both are correct and Y is correct reason of X (B) Y is correct and X is wrong (C) X is correct and Y is wrong (D) X and Y both are correct and Y is not correct reason of X.

Give scientific reasons.Variations are expected in sexually reproducing organisms.

How is the number of chromosomes and the DNA content maintained constant generation after generation sexually reproducing organisms ?

Give scientific reasons for the following statements: Extinction of species can be prevented in sexually reproducting organisms.

Which of the following statement is related to sexual reproduction in animals ? (A) Single parent is involved (B) Gamete formation occur (C) Offspring are exact copies of their parent (D) Common among single celled organisms.

Meiosis ensures the product of haploid phase In the life cycle of sexually reproduction organisms.

Write a short note on sexuality in organisms.