NEET BIOLOGY

REPRODUCTION

SEXUAL REPRODUCTION IN FLOWERING PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Select all that apply:Cross-pollination ____
A
Can occur with wind or water
B
Requires a pollinator like bees or butterflies
C
Increases genetic diversity
D
Occurs when male and female gametes fuse to make a seed
Explanation: 

Detailed explanation-1: -In contrast, cross-pollination leads to greater genetic diversity because the male and female gametophytes are derived from different plants. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.

Detailed explanation-2: -In contrast, cross-pollination-or out-crossing-leads to greater genetic diversity because the microgametophyte and megagametophyte are derived from different plants. Because cross-pollination allows for more genetic diversity, plants have developed many ways to avoid self-pollination.

Detailed explanation-3: -Self-pollination increases genetic uniformity and decreases genetic variation. Cross-pollination decreases genetic uniformity and increases genetic variation. Causes inbreeding.

Detailed explanation-4: -Pollen, looking like insignificant yellow dust, bears a plant’s male sex cells and is a vital link in the reproductive cycle. With adequate pollination, wildflowers: Reproduce and produce enough seeds for dispersal and propagation. Maintain genetic diversity within a population.

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