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  • I need help with Which one of the following generates new genetic combinations leading tovariation?

Which one of the following generates new genetic combinations leading to variation?

  • Option 1)

    Vegetative reproduction

  • Option 2)

    Parthenogenesis

  • Option 3)

    Sexual reproduction

  • Option 4)

    Nucellar polyembryony

 

Answers (1)

best_answer

 

Sexual reproduction -

It involves formation of the male and female gametes, either by the same individual or by different individuals of
the opposite sex. These gametes fuse to form the zygote which develops to form the new organism.

- wherein

It is an elaborate, complex and slow process as compared to asexual reproduction.

 

 

Advantages of seeds to angiosperms -

1. reproductive processes such as pollination and fertilisation are independent of water, seed formation is more dependable
2. seeds have better adaptive strategies for dispersal to new habitats and help the species to colonise in other areas
3. The hard seed coat provides protection to the young embryo
4. Being products of sexual reproduction, they generate new genetic combinations leading to variations

-

 

Sexual reproduction leads to development of new organism through gametic fusion resultingh in variation


Option 1)

Vegetative reproduction

This is incorrect option

Option 2)

Parthenogenesis

This is incorrect option

Option 3)

Sexual reproduction

This is correct option

Option 4)

Nucellar polyembryony

This is incorrect option

Posted by

Plabita

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