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1. Choose the correct answer from the list. Answers will be used only once.      ...

1. Choose the correct answer from the list. Answers will be used only once.

      -       A.       B.       C.       D.       E.       F.       G.   

_______________ is/are caused by expanded trinucleotide repeats.
      -       A.       B.       C.       D.       E.       F.       G.   

A(n) _______________ chemically changes the nature of a base in DNA.
      -       A.       B.       C.       D.       E.       F.       G.   

_______________ joins two DNA molecules together.
      -       A.       B.       C.       D.       E.       F.       G.   

____________ is the most common pathological result of DNA damage.
A.

DNA ligase
B.

polymerase
C.

Huntington’s disease
D.

mutagen
E.

cancer
F.

helicase
G.

xeroderma pigmentosum

2. Damage to DNA may result in (choose the best answer):

cell death

cancer

changes in inherited sequences

blockage of DNA replication

all of the above

none of the above
science   biology   
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Homework Answers

Answer #1

1. a)  Huntington’s disease is caused by expanded trinucleotide repeats.

b) A(n) mutagen chemically changes the nature of a base in DNA.

c) DNA ligase joins two DNA molecules together.

d) Cancer is the most common pathological result of DNA damage.

2. Damage to DNA may result in all of the above.

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