meiosis

Question 1

reproductive cells are also known as

Answer 1

gametes or sex cells

Question 2

what are the two types of reproductive cells?

Answer 2

sperm cells and egg cells

Question 3

how are reproductive cells formed

Answer 3

through a cell diving process called meiosis

Question 4

what are the stages of meiosis II and I

Answer 4

prophase II and I
metaphase II and I
anaphase II and I
telophase II and I

Question 5

what happens during Prophase II

Answer 5

sister chromatids are not genetically identical due to cross over from meiosis I, 1 copy of each chromosome are in the cell and no longer diploid, nuclear membrane starts of disappear

Question 6

what happens during prophase I

Answer 6

nuclear membranes disappear,genetic material from female egg exchanges with male sperm thinf produces genetic variation called crossing over, and homologous chromosomes can come together crossing over pairing them and spindle forms

Question 7

metaphase I and II

Answer 7

chromosomes line up in the middle of metaphase 1 of chromosomes are in pairs but metaphase 2 they aren’t

Question 8

what is independent assortment

Answer 8

when homologous chromosomes separate there are two possibilities

Question 9

what happens during anaphase I and II

Answer 9

they both pull the chromosomes to each sides of the cell but for anaphase I independently assortment occurs

Question 10

what happens during telophase I and II

Answer 10

nuclear membrane returns, cytokinesis is ready but during telophase II there is 4 nuclei instead of 2 like in telophase I

Question 11

what is crossing over?

Answer 11

when genetic material from female eggs can exchange with male sperm, this produces genetic variation

Question 12

what is the haploid number? 

Answer 12

1n or n

Question 13

what is the diploid number?

Answer 13

2n

Question 14

what are homologous chromosomes?

Answer 14

paired chromosomes which only occur in diploid

Question 15

how many cell divisions does meiosis contain and what are they?

Answer 15

it goes under meiosis I and meiosis II

Question 16

during Meiosis I what happens?

Answer 16

one diploid cell divides into two haploid cells

Question 17

what happens in meiosis II?

Answer 17

the two haploid cells divide into 4 haploid sex cells (gametes produced are not identical to the original diploid cell)

Question 18

what is interkensis

Answer 18

Interkinesis is a stage that occurs between meiosis, one and meiosis two during the stage, the cell grows and creates proteins ( DNA DOES NOT REPLICATE)

Question 19

what happens during cytokinesis after telophase II

Answer 19

The cell divides into two for total of four haploid cells the four cells represents for gamete’s. Each gamete is a haploid cell with only one of the sister chromatids. The gametes are now ready for fertilization through sexual reproduction.