Lab: 11

Question 1

What is binary fission?

Answer 1

the process in which a cell splits into two

Question 2

What is the cell cycle comprised of?

Answer 2

Interphase and Mitosis

Question 3

What are the substages of interphase?

Answer 3

G1, S, G2

Question 4

Mitosis is nuclear division. T or F?

Answer 4

T

Question 5

What is nuclear division?

Answer 5

when duplicated chromosomes separate to form two genetically identical daughter nuclei

Question 6

What are the four phases of mitosis?

Answer 6

Prophase, Metaphase, Anaphase, Telophase

Question 7

Arrange the sub levels of Interphase by increasing amount of time?

Answer 7

G2, S, and then G1

Question 8

As the cell progresses through interphase it spend (less/more) time in each sub-phase of interphase?

Answer 8

less

Question 9

The cell spends the majority of its time in what phase?

Answer 9

interphase

Question 10

Approximately how much time does the cell spend in mitosis?

Answer 10

about an hour

Question 11

If you were looking under a microscope, what would interphase look like? (in a plant cell)

Answer 11

nucleus would be clear

cell would appear “normal”

Question 12

If you were looking under a microscope, what would early prophase look like? (in a plant cell)

Answer 12

nucleus disappears, but cell membrane still intact

chromosomes float randomly in space

Question 13

If you were looking under a microscope, what would late prophase look look like? (in a plant cell)

Answer 13

Cell membrane disappears

chromosomes spread out

Question 14

If you were looking under a microscope, what would metaphase look like? (in a plant cell)

Answer 14

chromosomes are all aligned in the middle

Question 15

If you were looking under a microscope, what would early anaphase look like? (in a plant cell)

Answer 15

chromosomes have begun to split apart but are still mostly concentrated in the middle of the cell

Question 16

If you were looking under a microscope, what would late anaphase look like? (in a plant cell)

Answer 16

chromosomes are being pulled in opposite directions

Question 17

If you were looking under a microscope, what would telophase look like? (in a plant cell)

Answer 17

Chromosomes are concentrated at opposite poles and the cell plate has begun to form

Question 18

If you were looking under a microscope, what would telophase look like? (in a plant cell)

Answer 18

chromosomes condense in their opposite poles and the cell plate has formed all the way through

Question 19

What consists of the mitotic phase?

Answer 19

mitosis and cytokinesis

Question 20

The majority of cells in an organism will be found in _________?

Answer 20

interphase

Question 21

How does Cochline effect cell division?

Answer 21

inhibits the production of spindle fibers and therefor pauses the cell cycle in metaphase

Question 22

How will cochline effect the cell phases observed?

Answer 22

None will be past metaphase

Question 23

What phase do organelles duplicate?

Answer 23

G1 of interphase

Question 24

What phase do centriole pairs duplicate?

Answer 24

S of interphase

Question 25

What phase do spindle fibers form?

Answer 25

Early prophase

Question 26

What is a dyad made up of?

Answer 26

two sister chromatids

Question 27

In what phase is the nuclear envelope disassembled?

Answer 27

late prophase

Question 28

What phase does chromatin condense, fibers extend pole to pole, microtubules are connected to kinetochore, and nuclear membrane breaks down?

Answer 28

prophase

Question 29

What is the shortest phase of mitosis?

Answer 29

Anaphase

Question 30

In what phase do centromeres divide to create two chromosomes, the chromatids are freed from each other and pulled rapidly to each pole?

Answer 30

Anaphase

Question 31

In what phase are chromosomes in their most condensed state, aligned in the center of the cell via spindle?

Answer 31

Metaphase

Question 32

In what phase does the spindle fiber disassemble, microtubules are broken down, and a nuclear envelope re-forms?

Answer 32

telophase

Question 33

Is Cochline basic or acidic?

Answer 33

basic