Test: What is DNA


What is DNAVersión en línea Test your knowledge on how DNA works with this fun quiz! por Amy Carlowski 1 What re the subunits that make up DNA? a Nucleotide b Amino acid c Chromosome d Protein 2 Which base pairs with Adenine in DNA? a Cytosine b Uracil c Thymine d Guanine 3 Which base pairs with Cytosine in DNA? a Adenine b Uracil c Thymine d Guanine 4 What is the twisted ladder shape of DNA called? a Single strand b Double helix c Triple helix d Ring structure 5 What is the function of DNA? a Store genetic information b Produce energy c Regulate metabolism d Transport nutrients 6 What is the material that determines inherited characteristics? a deoxyribonucleic acid b ribonucleic acid c complementary nucleotides d complex molecules 7 Chromosomes are made of a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 8 Nucleotides are made of a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 9 What are the bases of a nucleotide? a protein and DNA b sugar, phosphate and a base c Adenine, thymine, guanine and cytosine 10 What letters stand for the type of bases? a A, T, G, and C b A, T, G, and N c A, T, G and R d A, C, R, and D 11 What 2 things must DNA be able to do? (choose 2) Choose one or more answers a Give instructions to a cell b Be able to be copied each time a cell divides c Split into guanine and cytosine d Manipulate individual genes 12 What 2 things does the twisted ladder model help explain? (choose 2) Choose one or more answers a Give instructions to a cell b Be able to be copied each time a cell divides c How DNA copies d How DNA functions in a cell 13 Why must DNA be able to be copied? a So each cell contains identical genes b So each cell contains different genes c So each cell combines to form a double helix d So each cell acts on its own 14 The amount of Adenine will always equal the amount of a Thymine b Guanine c Cytosine d Dinosine 15 The amount of Guanine will always equal the amount of a Thymine b Adenine c Cytosine d Dinosine 16 Rosland Franklin used a process called _______________ to make images of DNA molecules a x-ray diffracton b mutation c sublimation d replication 17 What shape did Rosland Franklin's images show? a spiral shape b twisted ladder shape c pair of bases d double helix 18 What did James Watson and Francis Crick’s model of DNA look like? a spiral shape b twisted ladder shape c pair of bases d double helix 19 The rungs on the DNA ladder are made of what? a spiral shape b twisted ladder shape c pair of bases d double helix 20 What is the twisted ladder shape of DNA called? a spiral shape b replication ladder c pair of bases d double helix 21 Sugar and phosphate parts form a the sides of the ladder b the base of the ladder c the rungs of the ladder d the top of the ladder 22 What does the pairing of bases allow the cells to do? a replicate b delete c insert d subsitute 23 Make copies of DNA a replicate b substitute c insert d mutate 24 Both sides of DNA molecules are complementary, binding only with their match. a True b False 25 DNA is copied every time a cell divides a True b False 26 What item within the cell helps with unwinding, copying, and rewinding DNA? a Proteins b Nucleotides c Adenine d Sugar 27 Where does the molecule split during replication? a Middle b Top c Bottom d Side 28 After a DNA molecule splits, what are added to each side of the ladder? a Complementary nucleotides b Transfer nucleotides c Amino acids d Transfer RNA 29 Why does the double helix structure match Chargaff’s observation? a A always pairs with T in equal amounts and C always pairs with G in equal amounts. b A always pairs with C in equal amounts and T always pairs with G in equal amounts. c A always pairs with G in equal amounts and C always pairs with T in equal amounts. 30 Scientists were surprised about how much the DNA molecule could do, because they thought only what could give instructions and be copied during cell division? a complex molecules b complex nucleotides c complementary nucleotides d ribosomes

1

What re the subunits that make up DNA?

a

Nucleotide

b

Amino acid

c

Chromosome

d

Protein

2

Which base pairs with Adenine in DNA?

a

Cytosine

b

Uracil

c

Thymine

d

Guanine

3

Which base pairs with Cytosine in DNA?

a

Adenine

b

Uracil

c

Thymine

d

Guanine

4

What is the twisted ladder shape of DNA called?

a

Single strand

b

Double helix

c

Triple helix

d

Ring structure

5

What is the function of DNA?

a

Store genetic information

b

Produce energy

c

Regulate metabolism

d

Transport nutrients

6

What is the material that determines inherited characteristics?

a

deoxyribonucleic acid

b

ribonucleic acid

c

complementary nucleotides

d

complex molecules

7

Chromosomes are made of

a

protein and DNA

b

sugar, phosphate and a base

c

Adenine, thymine, guanine and cytosine

8

Nucleotides are made of

a

protein and DNA

b

sugar, phosphate and a base

c

Adenine, thymine, guanine and cytosine

9

What are the bases of a nucleotide?

a

protein and DNA

b

sugar, phosphate and a base

c

Adenine, thymine, guanine and cytosine

10

What letters stand for the type of bases?

a

A, T, G, and C

b

A, T, G, and N

c

A, T, G and R

d

A, C, R, and D

11

What 2 things must DNA be able to do? (choose 2)

Choose one or more answers

a

Give instructions to a cell

b

Be able to be copied each time a cell divides

c

Split into guanine and cytosine

d

Manipulate individual genes

12

What 2 things does the twisted ladder model help explain? (choose 2)

Choose one or more answers

a

Give instructions to a cell

b

Be able to be copied each time a cell divides

c

How DNA copies

d

How DNA functions in a cell

13

Why must DNA be able to be copied?

a

So each cell contains identical genes

b

So each cell contains different genes

c

So each cell combines to form a double helix

d

So each cell acts on its own

14

The amount of Adenine will always equal the amount of

a

Thymine

b

Guanine

c

Cytosine

d

Dinosine

15

The amount of Guanine will always equal the amount of

a

Thymine

b

Adenine

c

Cytosine

d

Dinosine

16

Rosland Franklin used a process called _______________ to make images of DNA molecules

a

x-ray diffracton

b

mutation

c

sublimation

d

replication

17

What shape did Rosland Franklin's images show?

a

spiral shape

b

twisted ladder shape

c

pair of bases

d

double helix

18

What did James Watson and Francis Crick’s model of DNA look like?

a

spiral shape

b

twisted ladder shape

c

pair of bases

d

double helix

19

The rungs on the DNA ladder are made of what?

a

spiral shape

b

twisted ladder shape

c

pair of bases

d

double helix

20

What is the twisted ladder shape of DNA called?

a

spiral shape

b

replication ladder

c

pair of bases

d

double helix

21

Sugar and phosphate parts form

a

the sides of the ladder

b

the base of the ladder

c

the rungs of the ladder

d

the top of the ladder

22

What does the pairing of bases allow the cells to do?

a

replicate

b

delete

c

insert

d

subsitute

23

Make copies of DNA

a

replicate

b

substitute

c

insert

d

mutate

24

Both sides of DNA molecules are complementary, binding only with their match.

a

True

b

False

25

DNA is copied every time a cell divides

a

True

b

False

26

What item within the cell helps with unwinding, copying, and rewinding DNA?

a

Proteins

b

Nucleotides

c

Adenine

d

Sugar

27

Where does the molecule split during replication?

a

Middle

b

Top

c

Bottom

d

Side

28

After a DNA molecule splits, what are added to each side of the ladder?

a

Complementary nucleotides

b

Transfer nucleotides

c

Amino acids

d

Transfer RNA

29

Why does the double helix structure match Chargaff’s observation?

a

A always pairs with T in equal amounts and C always pairs with G in equal amounts.

b

A always pairs with C in equal amounts and T always pairs with G in equal amounts.

c

A always pairs with G in equal amounts and C always pairs with T in equal amounts.

30

Scientists were surprised about how much the DNA molecule could do, because they thought only what could give instructions and be copied during cell division?

a

complex molecules

b

complex nucleotides

c

complementary nucleotides

d

ribosomes

What is DNA

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