Year 8 Science W6L2

Asexual and Sexual Reproduction

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Asexual reproduction

• Offspring are clones of the parent

• The offspring has the same DNA as the parent

Asexual reproduction

The process used for asexual reproduction is mitosis or binary fission

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Benefits:

-Quick

-Reproduction can happen without a mate

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Disadvantage:

-Lack of genetic diversity

Sexual reproduction

Sexual reproduction involves gametes (example: sperm and egg)

Sexual Reproduction

The process used to make the gametes for sexual reproduction is meiosis.

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Benefits

• Genetic diversity

• Diversity supports survival of the species

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Disadvantage

High use of energy and time

Multiple Choice

The process used for asexual reproduction is

• meiosis

• mitosis

Multiple Choice

Offspring that are produced by only one parent are

• genetically diverse

• clones

• gametes

Multiple Choice

Asexual reproduction produces offspring with DNA that is _________ the parent.

• different from

• the same as

Multiple Choice

A type of organism that reproduces using binary fission is

• humans

• insects

• bacteria

• sharks

Multiple Choice

Hydra reproduce by

• binary fission

• budding

• sexual reproduction

Multiple Choice

Can some animals reproduce asexually? If so, is this common or rare?

• Yes, it is very common for animals to reproduce asexually.

• Yes, but it is pretty rare for animals to reproduce asexually.

• No, animals never reproduce asexually.

• Yes, animals only reproduce asexually.