Question

Match the UNIT 6 Key Terms to their correct definition.
Column A
adenine
base pairing
cytosine
guanine
thymine
Inversion mutation
mutagen
mutation
point mutation
chromosomal mutation

Column B
a. Principle that bonds in DNA and between RNA molecules can
form only between complimentary bases
b. a change in the DNA
c. nitrogenous base found in DNA but not in RNA)
d. chemical or physical agents in the environment that interact
with DNA and may cause a mutation
e. chromosomal mutation that flips a segment of the
chromosome
f. one of four nitrogenous bases found in DNA and RNA: pairs
with guanine
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. one of four nitrogenous bases found in DNA and RNA; pairs
with thymine or uracil
gene mutation in which a single base pair in DNA has been changed

Answer 1

Here are the matches between Column A and Column B:

- **adenine**: i. one of four nitrogenous bases found in DNA and RNA; pairs with thymine or uracil
- **base pairing**: a. Principle that bonds in DNA and between RNA molecules can form only between complimentary bases
- **cytosine**: f. one of four nitrogenous bases found in DNA and RNA: pairs with guanine
- **guanine**: h. one of four nitrogenous bases found in DNA and RNA; pairs with cytosine
- **thymine**: c. nitrogenous base found in DNA but not in RNA
- **Inversion mutation**: e. chromosomal mutation that flips a segment of the chromosome
- **mutagen**: d. chemical or physical agents in the environment that interact with DNA and may cause a mutation
- **mutation**: b. a change in the DNA
- **point mutation**: gene mutation in which a single base pair in DNA has been changed
- **chromosomal mutation**: g. a change in number of chromosomes or a large amount of DNA in an organism