Molecular Biology Concepts Assessment

Dr. Mikey explains the process of how DNA is transcribed into RNA and then translated into proteins. The video covers the structure of DNA, the role of chromosomes, and the transcription process involving RNA polymerase. It also discusses mRNA processing, translation by ribosomes, and how proteins fold into functional structures. The video concludes with an explanation of how mutations can alter protein function.

What is the primary role of DNA in our cells?

• To act as a genetic blueprint

• To transport oxygen

• To digest food

• To provide energy

How many pairs of chromosomes do humans have?

• 25 pairs

• 22 pairs

• 23 pairs

• 24 pairs

What is the structure of DNA often compared to?

• A flat sheet

• A twisted ladder

• A spiral staircase

• A straight line

Which nucleotide is not found in DNA?

• Thymine

• Cytosine

• Adenine

• Uracil

What enzyme is responsible for transcribing DNA into mRNA?

• Ligase

• DNA polymerase

• RNA polymerase

• Helicase

What are the non-coding regions removed from mRNA called?

• Exons

• Introns

• Codons

• Anticodons

Where does mRNA go after leaving the nucleus?

• To the lysosome

• To the Golgi apparatus

• To the ribosome

• To the mitochondria

How many nucleotides correspond to a single amino acid?

• Four

• Three

• Two

• One

What is the role of tRNA during protein synthesis?

• To transcribe DNA

• To splice mRNA

• To transport amino acids

• To replicate DNA

What can cause a mutation in DNA?

• Gravity

• Sound waves

• UV light

• Magnetic fields