Punnett Squares

Flashcard
•
Science
•
7th Grade
•
Hard
+1
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is a Punnett Square?
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 do the letters in a Punnett Square represent?
Back
The letters represent alleles, where uppercase letters denote dominant alleles and lowercase letters denote recessive alleles.
3.
FLASHCARD QUESTION
Front
What is the probability of getting a recessive trait in a Punnett Square with a Bb x Bb cross?
Back
25%.
Tags
NGSS.HS-LS3-3
4.
FLASHCARD QUESTION
Front
What is the genotype for brown fur in the given example?
Back
B (dominant allele for brown fur).
5.
FLASHCARD QUESTION
Front
What is the phenotype for the genotype 'bb'?
Back
White fur (since 'b' is the recessive allele).
6.
FLASHCARD QUESTION
Front
What does it mean if an organism is homozygous?
Back
It means the organism has two identical alleles for a particular gene (e.g., BB or bb).
7.
FLASHCARD QUESTION
Front
What does it mean if an organism is heterozygous?
Back
It means the organism has two different alleles for a particular gene (e.g., Bb).
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