Question

Product of sexual reproduction generally generates?

• A. large biomass
• B. new genetic combination leading to variation
• C. prolonged dormancy
• D. longer viability of seeds

Answer 1

The correct option is B

new genetic combination leading to variation

The correct option is B

The explanation for the correct option:

1. In sexual reproduction fusion of gamete take place.
2. Gamete contains genetic information.
3. Fusion of gamete from both the parents containing genetic information produces the new genetic combination leading to variation.
4. A zygote is the product of sexual reproduction and contains the characteristics of both parents.
5. The new individual form is different for both parents.

The explanation for the incorrect option:

Option A

1. Biomass is the mass of living organisms in a given ecosystem.
2. Wood is the largest source of biomass.
3. Larger trees undergoing a higher rate of photosynthesis have higher biomass.

Option C

1. Prolonged dormancy is the stage in which a seed can not germinate into a plant for a longer duration.
2. Seeds require oxygen and water for their germination.
3. In dormant seed moisture content reduces to (10-15)% of its mass.
4. Metabolic activity slows down and it enters a stage of dormancy.

Option D

1. Longer viability means a seed can be viable for a longer time.
2. In a few species, the seeds lose viability within a few months.
3. Lupinus arcticus seed's germinated after 10,000 years of dormancy.

Final answer: Sexual reproduction leads to a new genetic combination leading which leads to variation.