What is a Punnett Square?
Genetics: Punnett Square

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•
Biology
•
7th Grade - University
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A Punnett Square is a diagram used to predict the genotype and phenotype combinations of offspring from a genetic cross.
2.
FLASHCARD QUESTION
Front
What does homozygous mean?
Back
Homozygous refers to having two identical alleles for a particular gene (e.g., BB or bb).
3.
FLASHCARD QUESTION
Front
What does heterozygous mean?
Back
Heterozygous refers to having two different alleles for a particular gene (e.g., Bb).
4.
FLASHCARD QUESTION
Front
What is a genotype?
Back
Genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., BB, Bb, or bb).
5.
FLASHCARD QUESTION
Front
What is a phenotype?
Back
Phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype.
6.
FLASHCARD QUESTION
Front
What is the law of segregation?
Back
The law of segregation states that during the formation of gametes, the two alleles for a trait separate from each other.
7.
FLASHCARD QUESTION
Front
What is the probability of obtaining a homozygous recessive offspring from a cross between two heterozygous parents?
Back
25%.
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