What is a Punnett Square?
Punnett Squares - Complete Dominance

Flashcard
•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A Punnett Square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.
2.
FLASHCARD QUESTION
Front
What does homozygous mean?
Back
Homozygous refers to having two identical alleles for a particular gene, such as AA or aa.
3.
FLASHCARD QUESTION
Front
What does heterozygous mean?
Back
Heterozygous refers to having two different alleles for a particular gene, such as Aa.
4.
FLASHCARD QUESTION
Front
What is the difference between dominant and recessive traits?
Back
Dominant traits are expressed when at least one dominant allele is present, while recessive traits are only expressed when two recessive alleles are present.
5.
FLASHCARD QUESTION
Front
How do you represent a homozygous dominant genotype?
Back
A homozygous dominant genotype is represented as two uppercase letters, such as AA.
6.
FLASHCARD QUESTION
Front
How do you represent a homozygous recessive genotype?
Back
A homozygous recessive genotype is represented as two lowercase letters, such as aa.
7.
FLASHCARD QUESTION
Front
What is the probability of offspring having a dominant trait if both parents are heterozygous?
Back
The probability is 75%.
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