Mutation

How are DNA and RNA different? (CHECK ALL THAT APPLY)

• Only DNA can leave the nucleus

• RNA contains Thymine; DNA contains Uracil

• DNA is double stranded, RNA is a single stranded

• DNA contains Thymine, RNA contains Uracil

Choose the sequence of the mRNA strand that would match up with to the following DNA strand:

GTACAT

• CATGTA

• GAUCUA

• CAUGUA

• CUTGTU

What does a catalyst do?

• slows down a chemical reaction

• speeds up a chemical reaction

• stops a chemical reaction

• starts a chemical reaction

What happens when an enzyme is heated to a high temperature?

• The enzyme remains the same.

• The enzymes amino acid sequence changes.

• The shapes of the enzyme are altered or denatured.

• The enzyme dies.

Which process takes the directions of the DNA and turns into a RNA sequence?

• Transcription

• Translation

• Transformation

The first step of protein synthesis is transcription. What happens during transcription?

• DNA is transcribed into mRNA

• mRNA leaves the nucleus and goes to the cytoplasm

• tRNA transfers amino acids to mRNA

Where does transcription occur?

• inside the nucleus

• outside the nucleus in the cytoplasm

Translation is the second step of protein sysnthesis. What happens during translation?

• tRNA transfers amino acids to mRNA to make a protein

• DNA is transcribed into mRNA

• DNA is transcribed into DNA

Which of the following are differences in the structure between RNA and DNA

• DNA uses deoxyribose sugar, RNA uses sugar ribose

• DNA pairs Adenine with Uracil, RNA pairs Adenine with Thymine

• DNA is a double helix, RNA is a single helix

• DNA pairs Adenine with Thymine, RNA pairs Adenine with Uracil

Which of the following is the complementary mRNA sequence to this DNA strand: AACTGAA

• UUGACUU

• TTGACTT

• AACTGAA

• AACUGAA