What is a genotype?
Genotype, Phenotype, & Punnett Squares

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•
Science
•
7th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A genotype is the genetic makeup of an organism, represented by the alleles it possesses (e.g., AA, Aa, aa).
2.
FLASHCARD QUESTION
Front
What is a phenotype?
Back
A phenotype is the observable physical or biochemical characteristics of an organism, determined by its genotype and environment (e.g., brown fur, white fur).
3.
FLASHCARD QUESTION
Front
What does homozygous mean?
Back
Homozygous refers to having two identical alleles for a particular gene (e.g., AA or aa).
4.
FLASHCARD QUESTION
Front
What does heterozygous mean?
Back
Heterozygous refers to having two different alleles for a particular gene (e.g., Aa).
5.
FLASHCARD QUESTION
Front
What is a Punnett square?
Back
A Punnett square is a diagram used to predict the genetic outcomes of a cross between two organisms.
6.
FLASHCARD QUESTION
Front
If two heterozygous parents (Aa) reproduce, what is the probability of having a homozygous genotype?
Back
50%.
7.
FLASHCARD QUESTION
Front
If B = brown fur and b = white fur, what is the probability of offspring having white fur from two heterozygous parents (Bb)?
Back
25%.
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