Flashcards · Biology · Inheritance
Asexual and Sexual Reproduction
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How many parents are needed for asexual reproduction?
One.
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Are the offspring of asexual reproduction identical?
Yes, they are clones of the parent.
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Which cell division is used for asexual reproduction?
Mitosis.
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How many parents are needed for sexual reproduction?
Two.
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Are the offspring of sexual reproduction identical?
No, they are all different.
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Give an advantage of asexual reproduction.
It is fast, and needs no mate.
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Give a disadvantage of asexual reproduction.
There is no variation.
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Give an advantage of sexual reproduction.
It produces variation, so some survive a change.
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Give a disadvantage of sexual reproduction.
It is slower, and fewer offspring are made, and it needs more energy.
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How fast can a bacterium reproduce?
About every 20 minutes.
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How many babies do humans usually have per birth?
One.
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Why does lack of variation make a species vulnerable to disease?
Every individual may be equally affected.
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Give an organism that uses both methods.
A strawberry plant, a fungus, or an aphid.
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What was the cause of the Irish potato famine?
Potato blight, which affected genetically identical potatoes.
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Why can sexual reproduction help evolution?
It gives variation, for natural selection to act on.
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Common mistake about asexual reproduction?
Saying that it never produces variation. Mutations can make rare differences.