lab 5: Mitosis, Meiosis, Mendelian Genetics

Question 1

mitosis

Answer 1

asexual for unicellular eukaryotes

Question 2

cell cycle

Answer 2

interphrase G1, S, G2, mitosis/meiosis and cytokinesis

Question 3

mitosis

Answer 3

prophase, prometaphase, metaphase, anaphase, telophase

Question 4

G1 phase

Answer 4

unduplicated chromosomes

Question 5

S phase

Answer 5

duplicated chromosomes

Question 6

chromosome

Answer 6

two chromatids held at centromere by protein

Question 7

PROPHASE

Answer 7

chromatin condenses, mitotic spindle begins to form, nucleolus disappears but nucleus still intact

Question 8

PROMETAPHASE

Answer 8

nuclear envelope fragments, spindle microtubules attach to kinetochores of chromosomes

Question 9

METAPHASE

Answer 9

spindle, chromosomes that are attached to microtubules at kinetochores, aligned at metaphase plate

Question 10

ANAPHASE

Answer 10

sister chromatids of each duplicated chromosome separates, daughter chromosomes move to poles of the cell

Question 11

TELOPHASE

Answer 11

daughter nuclei form

Question 12

CYTOKINESIS (animals)

Answer 12

cleavage furrow forms (shallow groove), pinching plasma membrane

Question 13

CYTOKINESIS (plants)

Answer 13

cell plate (flattened sac) at midline of division, making new cell wall

Question 14

null hypothesis

Answer 14

no difference between expected and observed

Question 15

alternative hypothesis

Answer 15

a difference between expected and observed

Question 16

haploid

Answer 16

single set of chromosome per cell

Question 17

diploid

Answer 17

two sets of chromosomes per cell

Question 18

2n=46

Answer 18

2 sets of 23 chromosomes in humans

Question 19

synapsis

Answer 19

pairing up of homologs

Question 20

tetrads

Answer 20

four stranded figures

Question 21

crossing over

Answer 21

genetic material shift from homologs to another

Question 22

independent assortment

Answer 22

chromosomes move independently during meiosis I