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Cell Chapter 4

QuestionAnswer
Substitutions, Insertions, and deletions are all examples of what? Mutations
What one base replaces another what is this type of mutation? Substitution
Chargaff's Rules state? The amount of Adenine is always equal to the amount of Thymine and the amount of Cytosine is always equal to the amount of Guanine
When an extra base is added to an organism's DNA this mutation is known as? Insertion
______________ is a tool used for tracing a genetic trait through generations of a family Pedigree
When a base is left out of an organism's DNA is known as what kind of mutation? Deletion
Asbestos and chemicals from cigarette smoke are examples of what? Mutagens
Watson and Crick concluded that DNA resembled a twisted ladder shape known as a ______________ Double Helix
One side of a strand of DNA is always _____________ to the other side Complementary
What base pairs match up with each other A-t and G-C
Define incomplete Dominance each allele for a trait has its own degree of influence
In a DNA strand the sides of the "ladder" are made of ____________ alternating sugar and phosphate molecules
In a DNA strand the rungs of the "ladder are made of ______________ bases
Rosalind Franklin's images suggested that DNA had what shape? spiral
What helps us to repair mutations in our body? repair enzymes
A change in the order of the bases is called? mutation
A physical or chemical agent that causes damage to DNA is called? mutagen
Genes are composed of subunits known as ___________ nucelotides
Chromosomes are made of what 2 things? DNA and protein
Created by: courtney_hacker
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