DNA 10-1 Question and answers
already passed 2025/2026
Purine - correct answer ✔Is a nitrogen - containing base with two rings of carbon and nitrogen atoms .
Examples are adenide and guanine .
Pyramidine - correct answer ✔Is a nitrogen - containing base with one ring of carbon and nitrogen
atoms . Examples are cytosine and thymine
Complementary base pair - correct answer ✔Is a pair of nitrogen - containing bases connected to each
other by hydrogen bonds . Examples are adenine -thymine and cytosine - guanine
Nitrogen - containing base - correct answer ✔One of three molecules that constitutes a nucleotide
The primary function of DNA in cells is to - correct answer ✔C- store Information that tells the cells
which proteins to make
The two strands of a DNA molecule are held together by - correct answer ✔D- hydrogen bonds
According to the base-pairing rules , guanine binds with - correct answer ✔A- cytosine
During DNA replication , the enzyme DNA polymerase - correct answer ✔B- constructs new nucleotide
chains that are complementary to the chains in the original DNA molecule
If the sequence of nucleotides in one chain of a DNA molecule is T-C-A-A-G-C, a new nucleotide chain
will be produced during replication with the complementary sequence - correct answer ✔B-AGTTCG
already passed 2025/2026
Purine - correct answer ✔Is a nitrogen - containing base with two rings of carbon and nitrogen atoms .
Examples are adenide and guanine .
Pyramidine - correct answer ✔Is a nitrogen - containing base with one ring of carbon and nitrogen
atoms . Examples are cytosine and thymine
Complementary base pair - correct answer ✔Is a pair of nitrogen - containing bases connected to each
other by hydrogen bonds . Examples are adenine -thymine and cytosine - guanine
Nitrogen - containing base - correct answer ✔One of three molecules that constitutes a nucleotide
The primary function of DNA in cells is to - correct answer ✔C- store Information that tells the cells
which proteins to make
The two strands of a DNA molecule are held together by - correct answer ✔D- hydrogen bonds
According to the base-pairing rules , guanine binds with - correct answer ✔A- cytosine
During DNA replication , the enzyme DNA polymerase - correct answer ✔B- constructs new nucleotide
chains that are complementary to the chains in the original DNA molecule
If the sequence of nucleotides in one chain of a DNA molecule is T-C-A-A-G-C, a new nucleotide chain
will be produced during replication with the complementary sequence - correct answer ✔B-AGTTCG
