unit 7

Question 1

the ability of cells to pass on their characteristics to new cells is most directly related to the ability of

Answer 1

chromosomes to duplicate

Question 2

what term is used when a tumor is non cancerous

Answer 2

benign

Question 3

what kind of bonds form between base pairs

Answer 3

hydrogen pairs

Question 4

a cell duplicates its chromosomes during which phase

Answer 4

interphase S

Question 5

what causes the DNA to move in the electrophoresis lab

Answer 5

electricity

Question 6

during the process of mitosis, chromatids seperate into daughter chromosomes during which phase

Answer 6

anaphase

Question 7

during which phase of the cell cycle are the chromosomes duplicated in preparation for division

Answer 7

interphase

Question 8

the types of enzymes produced in a cell are regulated by the

Answer 8

order of nucleotides in DNA molecules

Question 9

what is true of telophase

Answer 9

two nuclear membranes have formed and the nucleolus reappeared

Question 10

during what phase of mitosis do the chromosomes line up at the equator

Answer 10

metaphase

Question 11

DNA gel electrophoresis seperates DNA fragments by

Answer 11

size

Question 12

what caused DNA pieces to separate into a banding pattern

Answer 12

the DNA pieces migrated through the electrophoresis gel at varying speeds due to their lengths

Question 13

what answer gives the stages of mitosis in proper chronological order

Answer 13

prophase, metaphase, anaphase, telephase

Question 14

during which phase of mitosis do the sister chromatids get pulled towards opposite poles

Answer 14

anaphase

Question 15

an inheritable mutation may occur if an organism has a change in its

Answer 15

DNA structure

Question 16

which of the following is true of prophase

Answer 16

the chromosomes have replicated and started to become visible

Question 17

the purpose of the respiratory system in mammals is to provide the

Answer 17

mitochondria with oxygen needed for cellular respiration

Question 18

what happens in interphase G2

Answer 18

organelle replication

Question 19

what protein is responsible for unzipping the DNA for replication

Answer 19

DNA helicase

Question 20

when looking into a microscope you see a line of homologous chromosomes near the center of the cell, what phase is this

Answer 20

metaphase

Question 21

what molecule is most responsible for determining a persons eye color, body structure, and cellular enzyme reconstruction

Answer 21

deoxyribonucleic acid

Question 22

during DNA replication, DNA molecules seperate into single strands, which are then used to create two identical strands of DNA. this process ensures…

Answer 22

that the daughter cells are genetically identical to parent cells