Unit 2 Biology - Sexual Reproduction

If two organisms reproduce sexually, then their offspring will exhibit a genetic makeup that is -

• identical to only one parent
• identical to all of its siblings
• a unique combination of traits
• the recessive traits of each parent

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Some advantages of sexual reproduction include: (select all that apply)

• genetic variation

• improves chances of adapting to the environment

• helps species survive catastrophes

• it doesn't take as much energy as asexual reproduction

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What are some disadvantages to sexual reproduction? (select all that apply)

• it takes a lot of energy to find a mate

• you don't need another mate

• it requires a male and a female

• more genetic errors can occur

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Male and female reproductive cells are collectively known as:

• spores

• pollen

• gametes

• offspring

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____________________ occurs when a male gamete (sperm) combines with a female gamete (egg).

• sporulation

• fertilization

• fission

• regeneration

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How many parents are required for sexual reproduction?

• 0

• 1

• 2

• 3

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If a sex cell has 10 chromosomes, how many chromosomes will there be after fertilization?

• 5

• 10

• 15

• 20

What are some of the facts about sexual reproduction?

• Takes two mates to reproduce and takes a longer time to reproduce
• Takes one mate to reproduce and takes a shorter amount of time to reproduce
• Takes two mates to reproduce and takes a shorter amount of time to reproduce
• Takes one mate to reproduce and takes a shorter amount of time to reproduce

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Sexual reproduction requires _____ parents and asexual reproduction requires ___ parents

• 1,1
• 2,2
• 2,1
• 1,2 

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If an environment suddenly changes, which type of reproduction would be most beneficial? Why?

• Asexual, because asexual organisms always have variation within species.
• Sexual, because sexual organisms have variation within species.
• Both Asexual and Sexual reproduction would be beneficial, because they both have variation within species.
• Asexual, because asexual organisms have no variation, so they can adapt to a changing environment.

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