Question 22
Match the DNA key terms to their correct definition.
Matchy matchy time!
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Column A
1.
adenine:
adenine
2.
base pairing:
base pairing
3.
cytosine:
cytosine
4.
guanine:
guanine
5.
thymine:
thymine
6.
mutagen:
mutagen
7.
frameshift mutation:
frameshift mutation
8.
point mutation:
point mutation
9.
chromosomal mutation:
chromosomal mutation
Column B
a.chemical or physical agents in the environment that interact with DNA and may cause a mutation
b.one of four nitrogenous bases found in DNA and RNA; pairs with guanine
c.nitrogenous base found in DNA but not in RNA
d.one of four nitrogenous bases found in DNA and RNA; pairs with thymine or uracil
e.gene mutation in which a single base pair in DNA has been changed
f.mutation that shifts the “reading frame” of the genetic message by inserting or deleting a nucleotide
g.a change in number of chromosomes or a large amount of DNA in an organism
h.one of four nitrogenous bases found in DNA and RNA; pairs with cytosine
i.principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
1. adenine: h. one of four nitrogenous bases found in DNA and RNA; pairs with cytosine
2. base pairing: i. principle that bonds in DNA can form only between adenine and thymine and between guanine and cytosine
3. cytosine: g. one of four nitrogenous bases found in DNA and RNA; pairs with guanine
4. guanine: b. one of four nitrogenous bases found in DNA and RNA; pairs with thymine or uracil
5. thymine: c. nitrogenous base found in DNA but not in RNA
6. mutagen: a. chemical or physical agents in the environment that interact with DNA and may cause a mutation
7. frameshift mutation: f. mutation that shifts the “reading frame” of the genetic message by inserting or deleting a nucleotide
8. point mutation: e. gene mutation in which a single base pair in DNA has been changed
9. chromosomal mutation: g. a change in number of chromosomes or a large amount of DNA in an organism