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