BOTANY

BOTANY

PLANT REPRODUCTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The alternation of generations occurs when the life cycle of an organism alternates between ____
A
flowering and non-flowering plants
B
seedless and seed-producing plants
C
haploid and diploid generations
D
seedless flowering plants and seed flowering plants
Explanation: 

Detailed explanation-1: -Plants alternate between the diploid sporophyte and haploid gametophyte, and between asexual and sexual reproduction. Therefore, the life cycle of plants is known as alternation of generations. The ability of the plants to reproduce sexually and asexually helps them to adapt to different environments.

Detailed explanation-2: -The ‘alternation of generations’ in the life cycle is thus between a diploid (2n) generation of sporophytes and a haploid (n) generation of gametophytes.

Detailed explanation-3: -Alternation of generations is a type of life cycle found in terrestrial plants and some algae in which subsequent generations of individuals alternate between haploid and diploid organisms. This can be contrasted to sexual reproduction in animals, in which both haploid and diploid cells are found in every generation.

Detailed explanation-4: -We can describe the alternation of generation life cycle in plants starting with a diploid organism, or sporophyte. This is the first stage, or generation one, in the life cycle. In most plants, this is the phase we recognize as the plants’ bodies. The sporophytes produce spores through meiosis.

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