Genetics Test 2 - Meiosis & Mitosis

Front 1

If the surface area of a cel increases 100times, it's volume increases

Back 1

1000 times

Front 2

the rate at which wastes are produced by a cell depends on the cell's

Back 2

volume

Front 3

the process by which a cell divides into 2 daughter cells is called

Back 3

mitosis

Front 4

when during the cell cycle are chromosomes visible?

Back 4

only during cell division

Front 5

what happens in the G2 phase?
(which pair is correct?)

Back 5

G2 Phase, preparaton for mitosis

Front 6

when during the cell cycle is a cell's DNA replicated?

Back 6

S phase

Front 7

the structure labeled A in figure 10-2 is called

(center of a chromosome)

Back 7

centromere

Front 8

the structures labeled B in figure 10-2 are called

(2 parts of a chromosome)

Back 8

sister chromatids

Front 9

what is the phases of mitosis in proper sequence

Back 9

prophase, metaphase, anaphase, telophase

Front 10

what is the role of the spindle during mitosis

Back 10

it helps separate the chromosomes

Front 11

one difference between plant cells and animal cells is that plant cells have

Back 11

a cell plate

Front 12

during normal mitotic cell division a parent cell having four chroosomes will produce 2 daughter cells each having

Back 12

four chromosomes

Front 13

cells grown in a petri dish tend to divide until they form the middle of the dish, the cells bordering the open space will begin dividing until they have filled the empty space.

what does this experiment show

Back 13

when the cell comes into contact with other cells, they stop growing

the controls on cell growth and division can be turned on/off

cell division can be reguided

Front 14

what regulates the cell cycle?

Back 14

cyclins and CDK

Front 15

what contains a nucleus

Back 15

eukaryotes

Front 16

which organelle converts the chemical energy stored in food into compounds that are more convinient for the cell to use?

Back 16

mitochondrion

Front 17

which means of particle transport requires energy from the cell

Back 17

active transport

Front 18

the diffusion of water across a selectively permeable membrane is called

Back 18

osmosis

Front 19

the head of a phospholipid is attracted to a molecule of water because both are

Back 19

hydrophilic and polar

Front 20

the passageway of a channel protein allows molecules to pass through because it is

Back 20

hydrophilic and polar

Front 21

how does a cell indicate to a white blood cell that it is part of the body

Back 21

the carbohydrate chains on the marker proteins

provide identification ion

Front 22

what is the role of receptor proteins in maintaining homeostasis

Back 22

it sends and recieves chemical signals

Front 23

if you scrape your knee and cells are exposed to the air, the cell membranes can still function properly because

Back 23

proteins are not stationary

Front 24

below is the ipid composition of different membranes.

which is likely to live ithe warmer environment.

Back 24

50% saturated fats, 50% unsaturated fats

Front 25

which protein is associated with facilitated diffusion

Back 25

channel proteins

Front 26

what prevents the proteins from leaving the phospholipid bilayer

Back 26

the polarity of the amino acids is identcal to that of the phospholipids

Front 27

pinocytosis ad phagocytosis are both examples of

Back 27

endocytosis

Front 28

which of the following describes the structure of a fatty acid

Back 28

carboxyl (COOH) functional group head

Front 29

if a gamete has a chromosomal number of 12, then the organisms haploid number is

Back 29

12

Front 30

what is the diploid number of body cells containing 24 pairs of chromosomes

Back 30

48 pairs

Front 31

the phospholipids found in the cell membrane are made by which organelle

Back 31

the smooth ER

Front 32

the process whereby the cell's cytoplasm and organelles divide between 2 daughter cells is called

Back 32

cytokinesis

Front 33

the chromosomes coil, the nucloili and nuclear membrane disappear, and the spindle becomes organized during

Back 33

prophase I
prophase
prophase II

Front 34

during mitosis chromosomes become aligned on the midplane or equator of the spindle during

Back 34

metaphase

Front 35

in _______, the centromere replicates thus allowing the double stranded chromosomes to divide into 2 single-stranded chromosomes

Back 35

anaphase

Front 36

when chromosomes unwind in ______, they become loosely coiled ______

Back 36

telophase, chromatin

Front 37

before entering meiosis I the cell has just finished

Back 37

interphase

Front 38

during prophase the ______ move to the poles of the cell

Back 38

centrioles

Front 39

the name of the x-shaped regions where crossing over occurs is called

Back 39

chiasmata

Front 40

when does crossing over occur

Back 40

prophase I

Front 41

homologues line up side by side in a process caalled

Back 41

synapsis

Front 42

during anaphase I of meiosis each daughtr cell leaves on member of each

Back 42

homologue

Front 43

the random separation of maternal and paternal chromosomes during meiosis 1 is called

Back 43

reduction

Front 44

meisos I beings with ____ cells

Back 44

haploid