TEST_8th-Ch 2:2 -Understanding Inheritance

Flashcard
•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is a gene?
Back
A piece of a chromosome with code for one trait.
2.
FLASHCARD QUESTION
Front
What is the genotype for a homozygous dominant trait?
Back
RR
3.
FLASHCARD QUESTION
Front
What is the genotype for a heterozygous trait?
Back
Rr
4.
FLASHCARD QUESTION
Front
What is the genotype for a homozygous recessive trait?
Back
rr
5.
FLASHCARD QUESTION
Front
What percentage of offspring would be homozygous recessive if a homozygous dominant organism mates with a heterozygous organism?
Back
0 percent.
6.
FLASHCARD QUESTION
Front
When both alleles of a trait are expressed in the phenotype, this is known as _____________.
Back
codominance.
7.
FLASHCARD QUESTION
Front
The alleles that control how a trait is expressed are its __________.
Back
genotype.
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