Quiz about DNA Structure and Replication

Question 1

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

Accepted Answer

TAC ACT GTC

Answer

ATG TGA CAG

Answer

GTA AGT GAC

Answer

CAT TCA CTG

Question 2

Which of the following best describes a DNA molecule?

Accepted Answer

double helix

Answer

contains ribose

Answer

made of amino acids

Answer

contains Uracil

Question 3

Which of the following units are repeatedly joined together to form a strand of DNA?

Accepted Answer

nucleotides

Answer

amino acids

Answer

fatty acids

Answer

polysaccharides

Question 4

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

Accepted Answer

thymine

Answer

cytosine

Answer

guanine

Answer

uracil

Question 5

Adenine bonds with ______________.

Accepted Answer

Thymine

Answer

Guanine

Answer

Cytosine

Answer

Adenine

Question 6

Why is DNA important?

Accepted Answer

it serves as the blueprint for traits of all living things

Answer

it is very small and very complicated

Answer

it's in everything

Answer

because we eat it every day for energy

Question 7

What determines the code, or information, of a DNA molecule?

Accepted Answer

the order (sequence) of the nitrogen bases

Answer

the shape (structure) of the nitrogen bases

Answer

the color of the nitrogen bases

Answer

the frequency (number) of nitrogen bases

Question 8

Which 2 molecules form the sides (backbone) of the DNA ladder?

Accepted Answer

deoxyribose sugar and phosphate

Answer

deoxyribose sugar and adenine

Answer

deoxyribose sugar and a hydrogen bond

Answer

deoxyribose sugar and the nucleus

Question 9

Which organelle is DNA usually found in?

Accepted Answer

nucleus

Answer

cell membrane

Answer

vacuole

Answer

chloroplast

Question 10

Nitrogenous bases are joined by which type of bond?

Accepted Answer

hydrogen bonds

Answer

polar bonds

Answer

ionic bonds

Answer

covalent bonds

Question 11

Replicate the following strand of DNA:
AATCATGGA

Accepted Answer

TTAGTACCT

Answer

AATCATGGA

Answer

UUAGUACCU

Answer

GGATAUCUA

Question 12

DNA replication results in two DNA molecules,

Accepted Answer

each one with one new strand and one original strand

Answer

each one with two original strands

Answer

each one with two new strands

Answer

one with two new strands and the other with two original strands

Question 13

order of replication

Accepted Answer

3, 4, 1, 2

Answer

3, 2, 1, 4

Answer

2, 1, 4, 3

Answer

2, 3, 1, 4

Question 14

A process in which DNA has the unique ability to make an exact copy of itself.

Accepted Answer

Replication

Answer

Translation

Answer

Transcription

Question 15

What are the three components of a nucleotide?

Accepted Answer

sugar, phosphate, nitrogen base

Answer

sugar, hydrogen, nitrogen base

Answer

sugar, oxygen, nitrogen base

Answer

sugar, phosphate, protein

Question 16

Adenine bonds with ______________.

Accepted Answer

Thymine

Answer

Guanine

Answer

Cytosine

Answer

Adenine

Question 17

Which 2 molecules form the sides (backbone) of the DNA ladder?

Accepted Answer

deoxyribose sugar and phosphate

Answer

deoxyribose sugar and adenine

Answer

deoxyribose sugar and a hydrogen bond

Answer

deoxyribose sugar and the nucleus

Question 18

Nitrogenous bases are joined by which type of bond?

Accepted Answer

hydrogen bonds

Answer

polar bonds

Answer

ionic bonds

Answer

covalent bonds

Question 19

The enzyme that unzips the DNA to prepare for replication

Accepted Answer

helicase

Answer

replicase

Answer

polymerase

Answer

synthase

Question 20

Which of the following units are repeatedly joined together to form a strand of DNA?

Accepted Answer

nucleotides

Answer

amino acids

Answer

fatty acids

Answer

polysaccharides

Question 21

What are the nucleotides made of?

Accepted Answer

Sugar, Phosphate, nitrogen base

Answer

Phosphate, Adenine, nitrogen base

Answer

Thymine, Adenine, Cytomine

Answer

Phosphate, Nitrogen, Adenine

Question 22

If the percentage of DNA is made of 30% Thymine, what is the correct percentage of Guanine?

Accepted Answer

20

Answer

30

Answer

15

Answer

60

Question 23

What is the sugar in the DNA molecule?

Accepted Answer

deoxyribose

Answer

ribose

Answer

glucose

Answer

fructose

Question 24

Which enzyme is responsible for adding nucleotides?

Accepted Answer

DNA Polymerase

Answer

Topoisomerase

Answer

Ligase

Answer

Primase

Question 25

A monomer of DNA is called a(n)

Accepted Answer

Nucleotide

Answer

Monosaccharide

Answer

Amino Acid

Answer

Triglyceride

Question 26

The concept that DNA is made of two strands running in opposite directions is called:

Accepted Answer

Antiparallel

Answer

Isomerism

Answer

Enantiomerism

Answer

S/R Chirality

Question 27

The "Double Helix Model" of DNA was proposed by:

Accepted Answer

Watson & Crick

Answer

Meselson & Stahl

Answer

Beadle & Tatum

Answer

Gosling & Watkins

Question 28

X-Ray diffraction pictures of DNA that suggested a helical shape were taken by:

Accepted Answer

Gosling & Franklin

Answer

Watson & Crick

Answer

Meselson & Stahl

Answer

Beadle & Tatum

Question 29

Who's work concluded that the %A=%T  and %G=%C

Accepted Answer

Chargaff

Answer

Meischer

Answer

Levene

Answer

Hammerling

Question 30

The term used to describe DNA Replication is:

Accepted Answer

Semi-Conservative

Answer

Conservative

Answer

AntiParallel

Answer

Dispersive

Question 31

The term used to describe DNA Replication is:

Accepted Answer

Semi-Conservative

Answer

Conservative

Answer

AntiParallel

Answer

Dispersive

Question 32

What determines the code, or information, of a DNA molecule?

Accepted Answer

the order (sequence) of the nitrogen bases

Answer

the shape (structure) of the nitrogen bases

Answer

the color of the nitrogen bases

Answer

the frequency (number) of nitrogen bases

Question 33

______ is created in DNA when helicase unzips the two strands.

Accepted Answer

Replication fork

Answer

Replication spoon

Answer

Antiparallel strands

Answer

DNA fragments

Question 34

From the nucleotide on the right, which part is labeled 2?

Accepted Answer

Sugar

Answer

Phosphate

Answer

Nitrogenous Base

Answer

Phosphorous

Question 35

The backbone of DNA is made up of _______ & ________ units.

Accepted Answer

sugar & phosphate

Answer

sugar & base

Answer

base & phosphate

Answer

phosphate & phosphate

Question 36

What is the function of nucleic acids?

Accepted Answer

store genetic information

Answer

store energy (long-term)

Answer

store energy (short-term)

Answer

build skin, hair, nails, muscles

Question 37

Which enzyme proofreads daughter DNA for errors?

Accepted Answer

DNA polymerase

Answer

DNA helicase

Answer

DNA ligase

Question 38

Which enzyme acts like glue during DNA replication?

Accepted Answer

DNA ligase

Answer

DNA helicase

Answer

DNA polymerase

Question 39

What is the correct order of steps for DNA replication?

Accepted Answer

Unwind, unzip, bring in new nucleotides, wind back up

Answer

Unzip, unwind, bring in new nucleotides, wind back up

Answer

Wind back up, unzip, unwind, bring in new nucleotides

Answer

Bring in new nucleotides, unwind, unzip, wind back up

Question 40

What does the DNA helicase do during replication?

Accepted Answer

Unwinds and unzips the DNA

Answer

It builds the new DNA strand

Answer

Glues the Okazaki fragments together

Answer

Sets the RNA primer for DNA polymerase

Question 41

What does DNA polymerase do during replication?

Accepted Answer

It builds the new DNA strand

Answer

Unwinds and unzips the DNA

Answer

Glues the Okazaki fragments together

Answer

Sets the RNA primer for DNA helicase

Question 42

What is the goal of DNA replication? (choose the most accurate answer)

Accepted Answer

To make a new copy of DNA from an existing strand of DNA

Answer

To destroy the DNA molecule

Answer

To make a totally new DNA molecule from nothing

Answer

To copy the DNA into RNA

Question 43

What is the complementary DNA strand to the following strand; ACT?

Accepted Answer

TGA

Answer

GTC

Answer

ATC

Answer

CAG

Question 44

What are sections of DNA that hold instructions on how to build proteins called?

Accepted Answer

Gene

Answer

Chromosomes

Answer

Centromere

Answer

Nucleus

Question 45

What is the name of the sugar found in DNA?

Accepted Answer

Deoxyribose

Answer

Oxyclean

Answer

Glucose

Answer

Ribose

Question 46

What do we call a protein that helps biological processes happen?

Accepted Answer

Enzymes

Answer

Sugars

Answer

Carbohydrates

Answer

Nucleic Acids

Question 47

Which enzyme proofreads the new DNA strand during replication?

Accepted Answer

DNA Polymerase

Answer

DNA Helicase

Answer

DNA Ligase

Answer

DNA Primase

Question 48

What does it mean to say DNA replication is "semi-conservative?"

Accepted Answer

A new strand is built from an original strand

Answer

A new strand is built from nothing

Question 49

Why is it important that when DNA is copied, it makes an exact copy?

Accepted Answer

If not, then there will be different instructions passed on to the new cell

Answer

It's not important

Answer

It's not important because the cell will just figure it out

Question 50

Why is DNA important?

Accepted Answer

it serves as the blueprint for making proteins in living organisms

Answer

it is very small and very complicated

Answer

it's in everything

Answer

because we eat it every day for energy

Question 51

Name this structure

Accepted Answer

nucelotide

Answer

double helix

Answer

twisted ladder

Answer

hydrogen bond

Question 52

Which of the following best describes a DNA molecule?

Accepted Answer

double helix

Answer

contains ribose

Answer

made of amino acids

Answer

contains Uracil

Question 53

Which organelle is DNA usually found in?

Accepted Answer

nucleus

Answer

cell membrane

Answer

vacuole

Answer

chloroplast

Question 54

The goal of DNA replication is

Accepted Answer

to make an identical copy of DNA

Answer

to make proteins in the cell

Answer

to divide cells

Answer

to fix mistakes in the DNA

Question 55

Describe the 2 DNA molecules produced during DNA replication.

Accepted Answer

Each molecule has an original side and a new side.

Answer

There is one old molecule and one new molecule.

Answer

Both molecules of DNA are different than one another.

DNA Structure and Replication

55 questions

Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG

Which of the following best describes a DNA molecule?

Which of the following units are repeatedly joined together to form a strand of DNA?

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

Adenine bonds with ______________.

Why is DNA important?

What determines the code, or information, of a DNA molecule?

Which 2 molecules form the sides (backbone) of the DNA ladder?

Which organelle is DNA usually found in?

Nitrogenous bases are joined by which type of bond?

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DNA Structure and Replication

55 questions

Which sequence of DNA bases would pair with this partial strandATG TGA CAG

Which of the following best describes a DNA molecule?

Which of the following units are repeatedly joined together to form a strand of DNA?

In a molecule of double-stranded DNA, the amount of Adenine present is always equal to the amount of

Adenine bonds with ______________.

Why is DNA important?

What determines the code, or information, of a DNA molecule?

Which 2 molecules form the sides (backbone) of the DNA ladder?

Which organelle is DNA usually found in?

Nitrogenous bases are joined by which type of bond?

Create a free account and access millions of resources

Similar Resources on Wayground

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Which sequence of DNA bases would pair with this partial strand
ATG TGA CAG