Preview (10 questions)
1 Question
30 seconds
Q.

Which of the following must happen first in order for DNA replication to occur?


DNA polymerase binds to the leading strand

DNA is unwound

Hydrogen bonds form between bases

chromosomes condense

2 Question
30 seconds
Q.

Where do the Okazaki fragments form?


lagging strand

leading strand

base-pairs

5' end

3 Question
30 seconds
Q.

Which of the following is required for DNA replication to occur?


DNA helicase

DNA ligase

DNA polymerase

all of these

4 Question
30 seconds
Q.

What does nucleotide consist of?


a nitrogen base

a nitrogen base and a sugar

a nitrogen base, sugar, and phosphate

two nitrogen bases, a sugar, and a phosphate

5 Question
30 seconds
Q.

The element that transformed the bacteria in Griffith's experiments was _________.


protein

capsules

DNA

heat

6 Question
30 seconds
Q.

The Hershey-Chase research showed that,


bacteria could be transformed

DNA was the molecule of heredity

DNA was in the shape of a double helix

bases paired in a predictable way 

7 Question
30 seconds
Q.

 The "rungs" of the DNA ladder are made of ______________.


phosphates and bases

sugars

sugars and phosphates

bases

8 Question
30 seconds
Q.

 Before the Hershey-Chase experiment, many scientists believed that ____ carried the hereditary information.


proteins

phages

helicase

the plasma membrane

9 Question
30 seconds
Q.

 To transform into a virulent form of bacteria, non-encapsulated bacteria must ________.


divide

be exposed to killed capsulated bacteria

be exposed to radioactive phosphorous

infect a host

10 Question
30 seconds
Q.

 A DNA strand has the following bases: A A G C C A. What are the bases on its complementary strand?


A A G C C A

A C C G A A

T T C G G T

C C A T T C