DNA profiling recap

What is the primary function of DNA in living organisms?

• Energy production

• Storing genetic information

• Protein synthesis

• Cell division

Which part of the DNA molecule contains the genetic code?

• Sugar-phosphate backbone

• Ribose

• Nitrogenous bases

• Amino acids

True or false: DNA is a single-stranded molecule.

• True

• False

The structure of DNA is often described as what shape?

The two scientists credited with discovering the structure of DNA are?​ (a)  

• James Watson and Francis Crick
• Jack Wilson and Freddie Croft

Match the DNA component to its description

• The backbone of the DNA molecule

• Nucleotide

• Complementary bases that connect strands

• Sugar-phosphate

• Building blocks of DNA

• Base pair

Which of the following is NOT one of the four nucleotide bases found in DNA?

• Adenine

• Cytosine

• Guanine

• Uracil

• Thymine

True or False: In forensic DNA analysis, quantification of extracted DNA is unnecessary before proceeding to PCR amplification.

• True

• False

Which step typically comes first in the DNA profiling process?

• PCR amplification

• Capillary electrophoresis

• DNA extraction

• DNA quantification

• Data analysis

What does STR stand for in DNA profiling?