Sexual Reproduction/Prophase I

Genetic Variation means

• genetic differences in a population or species
• genetic similarities between a population or species

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

What is an advantage of sexual reproduction?

• Allows genetic variation
• Only needs one parent
• Offspring are exact copies of parent

What is one disadvantage of sexual reproduction?

• Only one parent needed

• Offspring are exact copies of parents

• Happens very quickly

• Needs two parents

What is a gamete?

• sex cell

• human cells

• plant cells

• plant and animal cells

The male gamete in sexual reproduction is called the ______. The female gamete is called the _____.

• egg, sperm

• sperm, egg

• stamen, stigma

• egg, yolk

Sexual reproduction requires two

• gametes

• blastocysts

• embryos

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

A diploid cell...

• has 1/2 the amount of chromosomes

• has the normal amount of chromosomes (46)

• is represented by (n) in meiosis

A haploid cell...

• has the complete amount of chromosomes (46)

• is represented by (2n)

• has 1/2 the amount of chromosomes