What is a monohybrid cross?
Genetics: Monohybrid and Dihybrid Crosses

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Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A genetic cross between individuals that differ in one trait, typically involving one pair of contrasting traits.
2.
FLASHCARD QUESTION
Front
What is a dihybrid cross?
Back
A genetic cross between individuals that differ in two traits, typically involving two pairs of contrasting traits.
3.
FLASHCARD QUESTION
Front
Define genotype.
Back
The genetic makeup of an organism, represented by the combination of alleles.
4.
FLASHCARD QUESTION
Front
Define phenotype.
Back
The physical expression or characteristics of a genotype.
5.
FLASHCARD QUESTION
Front
What does it mean for an allele to be dominant?
Back
An allele that expresses its trait even in the presence of a recessive allele.
6.
FLASHCARD QUESTION
Front
What does it mean for an allele to be recessive?
Back
An allele that only expresses its trait when two copies are present (homozygous recessive).
7.
FLASHCARD QUESTION
Front
What is the purpose of a Punnett square?
Back
To predict the genotypes and phenotypes of offspring from a genetic cross.
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