DNA Structure and Protein Synthesis

DNA is made of subunits called _____________.

• proteins

• RNA

• genes

• nucleotides

Nucleotides are made of a sugar, a phosphate, and a ____________.

• base

• protein

• gene

• ribosome

Who discovered that the amount of adenine in DNA always equals the amount of thymine?

• Rosalind Franklin

• James Watson

• Erwin Chargaff

• Francis Crick

What scientists made images of DNA by using X-ray diffraction?

• Rosalind Franklin

• James Watson

• Erwin Chargaff

• Francis Crick

What did Watson and Crick's model of DNA look like?

• a ball

• a line

• links in a chain

• a long, twisted ladder

A string of nucleotides that has information for making one trait, or characteristic is called a ___________.

• protein

• gene

• amino acid

• histone

Tags

NGSS.HS-LS3-1

Each set of three bases is a code for _____________.

• a specific cell

• a protein

• an amino acid

• a chromosome

Tags

NGSS.HS-LS1-1

The first step in making a protein is ___________.

• mRNA transcribing the code from DNA

• mRNA going to the ribosome

• tRNA translating the code from mRNA

• amino acids bonding together

What is the type of mutation where a base is removed from the gene?

• deletion

• substitution

• insertion

• ultraviolet

Tags

NGSS.MS-LS3-1

Using DNA to identify who committed a crime is __________.

• genetic engineering

• DNA fingerprinting

• genetic disease

• DNA cloning