20181116_Molec Genetics_Bio1

How do protein synthesis and DNA replication differ?

• Protein synthesis makes a copy of DNA and DNA replication produces proteins.

• Protein synthesis only involves DNA and DNA replication involves both DNA and RNA

• Protein synthesis codes for amino acids and DNA replication creates two semi-conservative DNA strands

• Protein synthesis occurs only in somatic cells and DNA replication occurs only in gametes

The diagram shows which of the following processes? (White bubbles don’t mean anything)

• Protein synthesis

• DNA replication

• Meiosis

• Cell Cycle

Where does DNA replication take place in eukaryotic cells?

• Cytoplasm

• Mitochondria

• Chloroplast

• Nucleus

When does DNA replication occur?

• Mitosis

• Meiosis

• G phase of Interphase

• S phase of Interphase

What bases are used in RNA?

• Adenine, Guanine, Cytosine, Uracil

• Adenine, Guanine, Thymine, Cytosine

• Adenosine, Glutinane, Thyme, Urosol

• Adenosine, Glutinane, Thyme, Cytosol

Which choice describes DNA after replication takes place?

• Two DNA strands are produced, and both strands contain new base pairs on each side of each DNA

• Two DNA strands are produced, where one strand contains new DNA base pairs on both sides and one strand contains the original DNA base pairs on both sides

• One DNA strand is produced that is semi-conservative

• Two DNA strands are produced that are semi-conservative

Which of the following statements is TRUE about the steps to protein synthesis?

• Transcription is the second step; Translation is the first step

• Transcription occurs in the nucleus; Translation occurs in the cytoplasm

• Transcription makes proteins; Translation makes mRNA

• Transcription involves a ribosome; Translation involves DNA

Which of the following enzymes are needed during DNA replication

• RNA Polymerase, DNA helicase, DNA ligase

• DNA Polymerase, DNA helicase, DNA ligase

• mRNA, tRNA, rRNA

• DNA, RNA, Protein

A scientist puts nucleotide chains of UUU UUU in a test tube under conditions allowing protein synthesis. Soon the test tube is full of chains of the phenylalanine amino acid (polypeptide). What does this experiment indicate?

• The amino acid phenylalanine is composed of uracil

• Protein synthesis malfunctions in test tubes

• UUU codes for the amino acid phenylalanine

• Most proteins contain only one type of amino acid

Which of the following would most likely cause a mutation?

• The insertion of a nucleotide into DNA

• The placement of ribosomes on the endoplasmic reticulum

• The movement of transfer RNA out of the nucleus

• The release of messenger RNA from DNA