AP Biology Unit 6 Post-test

Front

How does the DNA in a prokaryote differ from a eukaryote?

Back

Prokaryote has circular DNA, Eukaryotes has linear DNA.

Front

What is the role of tRNA in protein synthesis?

Back

tRNA transports amino acids to the ribosomes.

Front

Why can muscle cells and nerve cells have the same DNA but function differently?

Back

The proteins expressed in each cell are different.

Front

Which enzyme is responsible for unzipping the DNA strands during replication?

Back

Helicase.

Front

What is the function of the poly-A tail in mRNA?

Back

To help protect the mRNA from degradation by hydrolytic enzymes.

Front

What is the primary function of mRNA?

Back

To carry genetic information from DNA to the ribosomes for protein synthesis.

Front

What is the structure of DNA?

Back

DNA is a double helix composed of nucleotides.

Front

What are the building blocks of proteins?

Back

Amino acids.

Front

What is the role of ribosomes in the cell?

Back

Ribosomes are the site of protein synthesis.

Front

What is transcription in the context of gene expression?

Back

Transcription is the process of copying a segment of DNA into RNA.