DNA and Protein Synthesis Review

Which scientist(s) was studying pneumonia in mice and discovered that harmless bacteria could be changed into harmful bacteria?

• Fredrick Griffith

• Watson and Crick

• Hershey and Chase

• Avery, MacLeod and McCarty

Which scientist(s) showed that DNA is the molecule of heredity by using radioactively labeled bacteriophages?

• Fredrick Griffith

• Watson and Crick

• Hershey and Chase

• Avery, MacLeod and McCarty

Which scientist(s) showed that DNA is in the form of a double helix?

• Fredrick Griffith

• Watson and Crick

• Hershey and Chase

• Avery, MacLeod and McCarty

In eukaryotes, hereditary information is stored inside the

• ribosomes, which have chromosomes that contain many genes

• ribosomes, which have genes that contain many chromosomes

• nucleus, which has chromosomes that contain many genes

• nucleus, which has genes that contain many chromosomes

What is the job of the nucleus?

• export proteins

• attach tRNA to mRNA

• Store DNA

• digest glucose

What is the role of a ribosome?

• export proteins

• synthesize proteins

• Store DNA

• digest glucose

Where is the DNA located in eukaryotic cells?

• ribosome

• cytoplasm

• rough ER

• nucleus

Chromosomes are made up of what organic compounds?

• simple sugars and iodine

• DNA and protein

• DNA and lipids

• proteins and glucose

A permanent change in a DNA sequence is known as

• transcription

• mutation

• protein synthesis

• nondisjunction

A mutation that does not change an amino acid is a __________ mutation.

• chromosomal

• silent

• frameshift

• deletion