Sexual vs asexual reproduction?
Reveal answer
Sexual: two parents, gametes fuse, variation. Asexual: one parent, mitosis, clones.
Key words: gametes · clones
4(a) REPRODUCTION · RECALL
4.1 Sexual and asexual reproduction
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What are genetically identical offspring called?
Reveal answer
Clones.
Key words: clones
Main advantage of sexual reproduction?
Reveal answer
Variation → some survive change or disease.
Key words: variation
What is meant by the term sexual reproduction?
Reveal answer
Production of offspring through fusion of male and female gametes.
Key words: sexual reproduction
What is meant by the term asexual reproduction?
Reveal answer
Production of offspring from one parent without gamete fusion.
Key words: asexual reproduction
What is meant by the term clone?
Reveal answer
Genetically identical cell or organism produced from one ancestor.
Key words: clone
What is meant by the term genetic variation?
Reveal answer
Differences in inherited genetic information among individuals.
Key words: genetic variation
Two reproductive strategies: for Parents, give the sexual reproduction and the asexual reproduction.
Reveal answer
Sexual reproduction: Usually two genetic contributions. Asexual reproduction: One parent.
Key words: Parents
Two reproductive strategies: for Gametes/fertilisation, give the sexual reproduction and the asexual reproduction.
Reveal answer
Sexual reproduction: Gametes fuse. Asexual reproduction: Neither required.
Key words: Gametes/fertilisation
Two reproductive strategies: for Genetic outcome, give the sexual reproduction and the asexual reproduction.
Reveal answer
Sexual reproduction: Variation among offspring. Asexual reproduction: Clones except mutation.
Key words: Genetic outcome
Two reproductive strategies: for Rate and energy, give the sexual reproduction and the asexual reproduction.
Reveal answer
Sexual reproduction: Often slower and more costly. Asexual reproduction: Often rapid and efficient.
Key words: Rate and energy
Two reproductive strategies: for Changing environment, give the sexual reproduction and the asexual reproduction.
Reveal answer
Sexual reproduction: Variation can improve population resilience. Asexual reproduction: Low variation can increase shared vulnerability.
Key words: Changing environment
True or false, and why? “Asexual offspring are always absolutely identical.”
Reveal answer
False. They are clones unless mutations introduce new genetic differences.
True or false, and why? “Sexual reproduction always involves mating.”
Reveal answer
False. The defining event is gamete fusion; many plants release or transfer gametes without mating behaviour.
True or false, and why? “Variation guarantees survival.”
Reveal answer
False. It increases the chance that some individuals have advantageous traits.