A
The base complementary to adenine
Thymine
What is the type of mutation where a base is added to the gene?
Insertion
TRUE or FALSE
The first step in making a protein is RNA copying DNA
True
a subunit of DNA that consists of a sugar, a phosphate, and a base
Nucleotide
TRUE OR FALSE
Each set of three bases is a code for a specific amino acid
True
A string of nucleotides that has information for making one trait is...
Gene
A change in DNA caused by random error or a mutagen
Mutation
The base complementary to cytosine
Guanine
What did Watson and Crickâs model of DNA look like?
Double Helix, Twisted Ladder, Spiral Staircase
material shaped like a double helix that determines inherited characteristics
DNA
the organelle where proteins are synthesized by messenger RNA and transfer RNA
Ribosome
DNA is made of subunits called what?
Nucleotides
The material made of amino acids that causes most of the differences we see in organisms
Proteins
A string of nucleotides that give the cell information about how to make a specific trait
Gene
TRUE or FALSE
Using DNA to identify who committed a crime is DNA cloning.
DNA Fingerprinting
The stage at which a DNA molecule is split down the middle
Replication
the form of mutation where one base is replaced by another kind
Substitution
A physical or chemical agent that can cause a mutation
Mutation
Nucleotides are made of a sugar, a phosphate, and a...
Base, Protein, Gene, or Ribosome
Base
a molecule that makes a mirror copy of sections of DNA and helps make proteins
RNA
Who discovered that the amount of adenine in DNA always equals the amount of thymine?
Erwin Chargaff
In a cell nucleus, the structures that strands of DNA are bundled into
Chromosomes
Chemical parts that are transferred to the ribosome by transfer RNA and matched to messenger RNA
Amino Acid
Substances that scientists can produce through genetic engineering
Proteins
What scientist made images of DNA by using X-ray diffraction?
Rosalind Franklin