DNA Review Feb 2025

Front

What makes up the rungs (steps) of the DNA ladder?

Back

Nitrogen bases.

Front

Which macromolecule is incorrectly paired with its function?

Back

Carbohydrates - steroids; speeds up reactions.

Front

According to Chargaff's rule, if there is 32% Thymine, what is the percentage of Cytosine in DNA?

Back

18%.

Front

What is the complementary DNA strand for AATCATGGA?

Back

TTAGTACCT.

Front

What is a codon?

Back

3 consecutive nucleotides found on a mRNA strand.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the three components of a nucleotide?

Back

Deoxyribose sugar, phosphate group, nitrogen base.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What is the role of mRNA in protein synthesis?

Back

To carry the genetic code from DNA to the ribosome.

Front

What is the difference between DNA and RNA?

Back

DNA is double-stranded and contains thymine; RNA is single-stranded and contains uracil.