Asexual and sexual reproduction

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

Video Segements

To view the video segments, click on the preview image. Answer the questions between the video segments.

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

Sexual reproduction requires two

• gametes

• blastocysts

• embryos

Multiple Choice

A benefit of sexual reproduction is

• less energy is used

• greater genetic diversity in the species

• it is more efficient than asexual reproduction

Multiple Select

Processes that happen during meiosis to increase genetic diversity include (choose 2)

• nondisjunction

• crossing over

• fertilization

• independent assortment of chromosomes

Multiple Choice

A disadvantage of sexual reproduction is that it is

• more time consuming than asexual reproduction

• creates less diversity than asexual reproduction

• uses less energy than asexual reproduction

Multiple Choice

Why is greater genetic diversity important for a species?

• the species is more likely to survive disasters

• the population of the species will never get too large

• there will be less competition with other species

Asexual reproduction of hydra

The following video shows asexual reproduction of a hydra.

Multiple Choice

The narrator says the hydra will be "almost" an exact copy of its parent. What process might sometimes cause a genetic change during asexual reproduction?

• meiosis

• crossing over

• mutation

Asexual reproduction of bacteria

The following video shows asexual reproduction of bacteria.

Multiple Choice

If salmonella bacteria from raw chicken are left on a kitchen counter, how long will it take to grow a colony of 100 bacteria through asexual reproduction?

• a few hours

• 3 days

• 1 week