Reproduction 2

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created 2 months ago by EvelynM
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1

Sexual Reproduction

Two individuals produce offspring with a combination of genes from both parents by fertilization

2

Meiosis

a process that produces haploid gametes (i.e. egg and sperm) to maintain the correct number of chromosomes

3

What is the advantage of sexual reproduction?

Increases genetic variability (produces genetically unique offspring)

(This is more advantageous in fluctuating environments, i.e. environments that change a lot)

4

Gametes

Reproductive Cells

5

What does it mean to say that gametes are haploid?

They have half the number of chromosomes of that organism.

6

How many chromosomes does a human gamete have?

23

7

Sperm

male gamete

8

Flagellum

used by sperm to move

9

Egg

female gamete

10

Is an egg much larger than sperm, or sperm much larger than egg?

Egg is much larger than sperm.

11

What does it mean to say that an egg is non-motile?

It can't move on its own.

12

Differences between sperm and egg:

Egg is much larger

Sperm moves on its own using flagellum; egg cannot move on its own