What is a Punnett square?
Punnett squares

Flashcard
•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A Punnett square is a diagram used to predict the genetic makeup of offspring from two parents, showing the possible combinations of alleles.
2.
FLASHCARD QUESTION
Front
What does genotype mean?
Back
Genotype refers to the genetic constitution of an individual, represented by letters (e.g., AA, Aa, aa).
3.
FLASHCARD QUESTION
Front
What does phenotype mean?
Back
Phenotype is the observable physical or biochemical characteristics of an organism, determined by both genetic makeup and environmental influences.
4.
FLASHCARD QUESTION
Front
What is the probability of getting a homozygous dominant offspring (AA) from a cross of AA x Aa?
Back
50%.
5.
FLASHCARD QUESTION
Front
If B = brown fur and b = white fur, what is the genotype of an offspring with white fur?
Back
bb.
6.
FLASHCARD QUESTION
Front
What is the expected phenotype ratio from a monohybrid cross (e.g., Aa x Aa)?
Back
3:1 ratio of dominant to recessive phenotype.
7.
FLASHCARD QUESTION
Front
What is the probability of getting a heterozygous offspring (Bb) from a cross of Bb x Bb?
Back
50%.
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