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Genes & DNA
Chapter 6
26
Science
7th Grade
01/08/2014

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Term
A base
Definition
Along with a sugar and a phosphate, what is the third part of a nucleotide?
Term
nucleotide
Definition
a subunit of DNA is called ______
Term
Rosalind Franklin
Definition
Who is the person who found out that DNA has a spiral shape?
Term
Erwin Chargaff
Definition
The person that said that adenine equals thymine in DNA was _______________.
Term
a twisted ladder
Definition
What does DNA look like?
Term
a pair of bases
Definition
The "rungs" of the DNA ladder are what?
Term
gene
Definition
What is a string of nucleotides called?
Term
a protein
Definition
What does each gene have instructions for making?
Term
a ribosome
Definition
Where does messenger RNA go to?
Term
A, T, G, C
Definition
What letters represent the four bases?
Term
amino acid
Definition
Three bases code for one ________________
Term
sugar and phosphate
Definition
The sides of the DNA ladder are made of what?
Term
down the middle
Definition
Where does a DNA molecule split to be copied?
Term
genetic engineering
Definition
A tobacco plant with a firefly gene that makes it glow is an example of what?
Term
deletion
Definition
In what type of mutation is one base left out?
Term
chemicals in cigarette smoke, asbestos, UV radiation, high-energy radiation
Definition
What are some causes of DNA mutations?
Term
Thymine (T)
Definition
Adenine (A) and _____________ are bases that fit together.
Term
Guanine (G)
Definition
Cytosine (C)and ____________ are bases that fit together.
Term
replicate
Definition
The pairing of bases allows cells to_________.
Term
complemetary
Definition
Pairs of bases match up because they are ___________ to each other.
Term
mutation
Definition
A change in a gene is called _____________.
Term
DNA
Definition
Deoxyribonucleic acid is called ______ for short.
Term
RNA
Definition
A copy of part of a DNA strand is callled________.
Term
transfer RNA
Definition
The RNA that translates the messenger RNA message is called______________.
Term
ribosome
Definition
The "factory" or cell organelle that creates new proteins is called a _____________.
Term
Messenger RNA
Definition
The RNA that is a mirror like copy of part of a DNA strand is called ________________.
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