Meiosis and Gene Expression Concepts

Front

If a DNA strand is 30% adenine, what percent is thymine?

Back

30% (Adenine pairs with Thymine in DNA, so their percentages are equal.)

Front

What enzyme is responsible for synthesizing new DNA strands during replication?

Back

DNA polymerase

Front

Gene expression is when a segment of DNA has been switched 'on/off' or _______

Back

activated/deactivated

Front

What are the complementary bases for the DNA strand AAGCCA?

Back

TTCGGT

Front

During which process is mRNA synthesized?

Back

Transcription

Front

What is the role of DNA ligase in DNA replication?

Back

DNA ligase joins Okazaki fragments on the lagging strand.

Front

What is the function of helicase in DNA replication?

Back

Helicase unwinds the DNA double helix.

Front

What is the central dogma of molecular biology?

Back

DNA -> RNA -> Protein (This describes the flow of genetic information.)

Front

What is the difference between transcription and translation?

Back

Transcription is the process of making RNA from DNA; translation is the process of making proteins from RNA.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can affect gene function.