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final exam
miotisis
22
Biology
9th Grade
06/15/2011

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Term
What is incomplete dominance?
Definition
A situation where one allele for a gene is not completly dominant over another allele for that gene.
Term
What is codominance?
Definition
A situation where both alleles contribute to the phenotype.
Term
Traits controlled by two or more genes are said to be .
Definition
polygenic
Term
What molecule has the shape of a double helix?
Definition
DNA
Term
The nucleotides in DNA are made up of what?
Definition
Deoxyribose, a Nitrogenous Base, and a Phosphate.
Term
In eukaryotic organismsthe DNA is located where?
Definition
In the nucleus
Term
During the process of , DNA is copied in two identical copies. Each copy contains one strand, and one strand of DNA
Definition

replication

old

new

Term
Name the four bases found in DNA.(Hint* ATCG)
Definition

Adenine

Thymine

Cytosine

Guanine

Term
During the process of replication, a DNA strand with the bases TCAGT will form a strand with what bases?
Definition

AGTCA

(Base Pairing!)

Term
RNA contains the sugar .
Definition
Ribose
Term
While DNA contains the base , RNA contains the base instead.
Definition

thymine

uracil

Term
Name the three types of RNA.
Definition
Messenger, Ribosomal, and Transfer RNA.
Term
Translation is protien synthesis. Translation involves all three types of .
Definition
RNA
Term
is the process by which RNA molecules are produced from DNA.
Definition
Transcrption
Term
The describes the sequence of nucleotides used to produce amino acids.
Definition
genetic code
Term
There are 64 different kinds of codon but only 20 amino acids. Because of this, a(n) can be specifies by more than one codon.
Definition
amino acid
Term
Selective breeding is used to produce desired -blank- in offspring
Definition
Traits
Term
Inbreeding is the not continued breeding of closely related individuals, and it can lead many genetic defects. True of False?
Definition
False. It is the continued inbreeding of closely related individuals.
Term
The crossing of a horse and a donkey produces a mule which is an example of -blank- .
Definition
Hybridization
Term
Hundreds of restriction enzymes are known, and each one cuts DNA at a specific sequence of .
Definition
Nucleotides
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