meiosis

Question 1

what is meiosis?

Answer 1

cell division in reproductive organs to halve the number of chromosomes

Question 2

what are gametes and examples?

Answer 2

sex cells - egg and sperm cell

Question 3

what is a haploid cell?

Answer 3

half the chromosomes of a normal cell - has 23 chromosomes

Question 4

what is a diploid cell?

Answer 4

when egg and sperm cell joins - has 46 chromosomes

Question 5

why do sex cells need to have 23 chromosomes?

Answer 5

to allow another gamete to combine to be a diploid cell (23+23(from each gamete)=46 chromosomes))

Question 6

what is the process of meiosis?

Answer 6

a process where a single cell divides twice to produce 4 gamete cells containing half the original amount of genetic information

Question 7

what is a genome?

Answer 7

the complete set of DNA (genetic material) in an organism

Question 8

what is a gene?

Answer 8

a small section of DNA on a chromosome that codes for a particular sequence of amino acids to make a specific protein

Question 9

what happens during the first stage of meiosis?

Answer 9

meiosis one separates pair of chromosomes and reduces diploid cells to a haploid

Question 10

what happens during meiosis two?

Answer 10

meiosis two separates the sister chromatids and forms 4 new haploid gametes, each with one copy of each chromosome

Question 11

where are genes found?

Answer 11

genes are found in chromosomes