DNA ch.13

Question 1

base pairing

Answer 1

principle that bonds in DNA can form only adenine and thymine and between guanine and cytosine

Question 2

Nucleic acids are made up of __________

Answer 2

building blocks called nucleotides

Question 3

DNA is made up of __________________

Answer 3

nucleotides joined into long strands or chains by covalent bonds

Question 4

A=__ G=__

Answer 4

A=T G=C

Question 5

Who produced an X-ray diffraction photograph that revealed two important clues about the structure of DNA?

Answer 5

Rosalind Franklin

Question 6

The Griffith, Avery, and Hershey-Chase experiments established that the carrier of genetic information from one generation of a cell to the next generation is what type of molecule?

Answer 6

DNA

Question 7

According to the Chargaff rule, which of the following must be true regarding the number of each type of nucleotide in DNA?

Answer 7

A=T; G=C

Question 8

Which two scientist worked out the double-helix structure of DNA that we know now?

Answer 8

Watson and Crick

Question 9

In DNA, the nitrogenous base that pairs with adenine is….

Answer 9

thymine

Question 10

The two strands of the DNA double helix are held together by …

Answer 10

hydrogen bonds between bases

Question 11

replication

Answer 11

process of copying DNA prior to cell division

Question 12

DNA polymerase

Answer 12

principle enzyme involved in DNA replication

Question 13

telomere

Answer 13

repetitive DNA at the end of a eukaryotic chromosome

Question 14

Prokaryote or Eukaryote or both?
New chromosomes remain attached to cell membrane

Answer 14

Eukaryote

Question 15

Prokaryote or Eukaryote or both?
Protein’s check for errors

Answer 15

Both

Question 16

Prokaryote or Eukaryote or both?
DNA replication is in the cytoplasm

Answer 16

Prokaryote

Question 17

Prokaryote or Eukaryote or both?
Starts at one place

Answer 17

Prokaryote

Question 18

Prokaryote or Eukaryote or both?
Proceeds in two directions

Answer 18

Both

Question 19

Prokaryote or Eukaryote or both?
Copies of DNA condense into chromosomes that separate

Answer 19

Both

Question 20

Prokaryote or Eukaryote or both?
Starts at many places

Answer 20

Eukaryote

Question 21

Prokaryote or Eukaryote or both?
DNA is packaged with Histones after replication

Answer 21

Eukaryote

Question 22

Prokaryote or Eukaryote or both?
DNA replication requires telomerase

Answer 22

Eukaryote

Question 23

What happens when a piece of DNA is missing?

Answer 23

It can harm or benefit

Question 24

What is an example of a nucleotide found in DNA

Answer 24

adenine (A), thymine (T), guanine (G), and cytosine (C).

Question 25

Watson and Crick discovered the two strands of DNA run in ……

Answer 25

run in opposite sides

Question 26

DNA replication results in two DNA molecules,

Answer 26

consisting of one new and one old chain of nucleotides

Question 27

In eukaryotes, DNA is found

Answer 27

nucleus

Question 28

In both prokaryotes and eukaryotes, DNA replication happens

Answer 28

before the division of the cell

Question 29

DNA is replicated during which phase of the cell cycle?

Answer 29

S phase

Question 30

The backbone of DNA is composed of

Answer 30

alternating sugar (deoxyribose) and phosphate groups.

Question 31

What holds on nucleotide to another nucleotide on the same strand of DNA

Answer 31

hydrogen bonds

Question 32

In prokaryotes, DNA molecules are found

Answer 32

a central area of the cell called the nucleoid

Question 33

A nucleotide does not contain

Answer 33

Uracil is never a part of nucleotide of DNA.