meiosis

meiosis

100

Which of the following is a result of Meiosis?____ A. Diploid cells are reduced by 1/2 B. Diploid cells double

Diploid cells are reduced by 1/2

200

In mitosis, a 2n body cell produces two identical 2n body cells. How is meiosis different? A. body cell is doubled B. starts with a (2n) body cell and produces 4 (n) gametes

B. starts with a (2n) body cell and produces 4 (n) gametes

300

What is being produced in meiosis? 

haploid gametes

400

Sperm cell size, compared to egg cells, are 

smaller

500

Sperm and Egg cells are produced here

gonads/testes/ovaries

meiosis

100

An organism has 62 chromosomes. After completion of meiosis, how many chromosomes will the gametes contain?

1/2 = 31

200

How many parents are needed for asexual reproduction?

1

300

During meiosis, homologous chromosomes exchange genetic material. what does this change of material do? A. increases genetic variation B. reduces the diploid number to the haploid number

A. increases genetic variation

400

This occurs during prophase I a homologous pair aligns and 'swaps' parts of DNA

Crossing Over

500

What is it called when a star fish grows a new body part off of a piece of itself?

animal regeneration

meiosis

100

How many functional gametes are produced as a result of meiosis?

4

200

What kind of cell does meiosis begin with?

diploid

300

What are 2 advantages for asexual reproduction?

Quicker rate and less energy used to find a mate.

400

This is the failure of chromosomes to separate in anaphase I or anaphase II 

Nondisjunction 

500

The total amount of chromosomes A. Haploid B. Diploid

B. Diploid

meiosis

100

This is the key difference in Prophase I and Prophase II 

Crossing Over occurs in Prophase I

200

A cell with half the total amount of chromosomes

Haploid

300

This process is the passing of physical characteristics from parent to offspring.

Heredity

400

A fertilized egg cell A. Gamete B. Zygote

B. Zygote

500

Sexual reproduction provides ________. This possibly allows the offspring to better adapt to changing environments.

genetic variation

meiosis

100

If the environment changes for an asexual organism, it could possibly do this since there's no genetic variation from its parent.

Possibly die if it cannot adapt.

200

When Sperm & egg unite.

Fertilization

300

What are 2 disadvantages to asexual reproduction?

Populations are limited to specific conditions and populations have no genetic variation, therefore, they are slower to adapt to new environmental changes.

400

These are number ordered based on largest to smallest sizes 

chromosomes 

500

What are some disadvantages of sexual reproduction?

Takes time to find a mate and uses energy. Requires 2 parents.