bio 2.2

Question 1

zygote

Answer 1

cell formed by fusion of a sperm and an egg

Question 2

replication

Answer 2

process of copying DNA

Question 3

strands of … make the base exposed

Answer 3

double helix seperate

Question 4

how do you end up with two identical strands of DNA

Answer 4

nucleotides pair up with exposed bases, sugar and phosphate bond with neighbouring nucleotides

Question 5

types of cell division

Answer 5

mitosis n meiosis

Question 6

mitosis

Answer 6

produces two daughter cells identical to the parent cell, involved in growth and repair of the body

Question 7

meiosis

Answer 7

produces gametes that have half the number of chromosomes as the parent cell

Question 8

process of mitosis

Answer 8

interphase, prophase, metaphase, anaphase, telophase, cytokenisis

Question 9

interphase(mitosis)

Answer 9

chromosomes replicate to have two chromatids

Question 10

prophase (mitosis)

Answer 10

replicated chromosomes and their chromatids become visible

Question 11

metaphase (mitosis)

Answer 11

replicated chromosomes lined up along equator of the cell

Question 12

anaphase (mitosis)

Answer 12

the chromatids seperate and move to opposite roles of the cell

Question 13

telophase (mitosis)

Answer 13

two nuclei form, each with the same number of chromosomes as the parent cell

Question 14

cytokinesis

Answer 14

cell membranes form, making two daughter cells, with a nucleus

Question 15

diploid number, aka 2n (2x23)

Answer 15

number of chromosomes in your body, 46

Question 16

haploid number, aka n (23)

Answer 16

gametes have one copy of each chromosome

Question 17

mitosis is used for:

Answer 17

normal growth, tissue repair, regeneration of tissues, asexual reproduction