Meiosis

Question 1

Meiosis stages

Answer 1

Interphase

1st division - chromosomes pair up and only one goes to each daughter cell (half number if parent)

2nd division - daughter cell each divides without duplicating chromosomes

Results in four identical daughter cells with only half of the chromosomes of parent cell.

Question 2

Fertilization

Answer 2

Joining of two gametes. Creates single new cell (w full set of chromosomes) called zygote

Zygote divides via mitosis forming multicellular life form called an embryo

Question 3

Hermaphrodite

Answer 3

Animals that can produce both male and female gametes. Usually mate with own species but when needed members can fertilize themselves

Question 4

Plant reproductive organ

Answer 4

Flower

Question 5

Male gametes in plants

Answer 5

Pollen found on stamen

Question 6

Female gametes

Answer 6

Ovules found in pistil

Question 7

Pollination

Answer 7

Occurs when pollen transfers from anther of stamen to stigma of pistil

Question 8

Cross pollination

Answer 8

Pollen of one plant carries to stigma of another via wind or water

Question 9

Self pollination

Answer 9

Pollination occurring on one plant

Question 10

Advantage and disadvantages of sexual reproduction

Answer 10

A - Offspring show variation which helps species in inconstant environment survive

D - Embryo must be protected and nurtured during development; limited number of offsprings can be produced