Chpt 3 Objective 4 & 5

4- Explain DNA Replication 5-Explain the process by which a cell builds proteins using the DNA code

What is the initial step in protein synthesis?

Transcription

Which molecule carries the instructions from DNA to the ribosome?

mRNA

What is the role of the ribosome during translation?

To assemble amino acids into proteins

What does tRNA do in the process of protein synthesis?

It transfers amino acids to the ribosome

Which of the following is present in DNA but not in RNA?

Thymine

How are proteins formed during translation?

By assembling amino acids in a sequence

During which phase of the cell cycle does DNA replication occur?

S

What type of bonds hold the two strands of DNA together?

Hydrogen bonds

What does semiconservative replication mean?

Each new DNA molecule contains one old strand and one new strand

Where does transcription happen

The nucleus