Punnett Squares and Heredity*

Flashcard
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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 does genotype mean?
Back
Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses for a particular trait.
Tags
NGSS.HS-LS1-1
3.
FLASHCARD QUESTION
Front
What does phenotype mean?
Back
Phenotype is the physical appearance or visible traits of an organism, resulting from the interaction of its genotype with the environment.
4.
FLASHCARD QUESTION
Front
What is the difference between homozygous and heterozygous?
Back
Homozygous means having two identical alleles for a trait (e.g., AA or aa), while heterozygous means having two different alleles for a trait (e.g., Aa).
5.
FLASHCARD QUESTION
Front
If a blue-eyed woman (bb) marries a heterozygous man (Bb), what is the chance of having a blue-eyed baby?
Back
50% chance.
Tags
NGSS.HS-LS3-1
NGSS.HS-LS3-2
NGSS.HS-LS3-3
6.
FLASHCARD QUESTION
Front
What is a purebred organism?
Back
A purebred organism has a genotype that is homozygous for a specific trait, meaning it has two identical alleles (e.g., PP or pp).
7.
FLASHCARD QUESTION
Front
What is the probability of two heterozygous parents (Bb) having a blue-eyed baby?
Back
25% chance.
Tags
NGSS.HS-LS3-3
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