Punnett Square Practice
Flashcard
•
Science
•
7th Grade
•
Practice Problem
•
Easy
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15 questions
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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 the term 'genotype' refer to?
Back
Genotype refers to the genetic makeup of an organism, specifically the alleles it possesses for a particular trait.
3.
FLASHCARD QUESTION
Front
What is the difference between homozygous and heterozygous genotypes?
Back
Homozygous genotypes have two identical alleles (e.g., AA or aa), while heterozygous genotypes have two different alleles (e.g., Aa).
4.
FLASHCARD QUESTION
Front
What does 'dominant allele' mean?
Back
A dominant allele is one that expresses its trait even when only one copy is present in the genotype.
5.
FLASHCARD QUESTION
Front
What does 'recessive allele' mean?
Back
A recessive allele is one that only expresses its trait when two copies are present in the genotype.
6.
FLASHCARD QUESTION
Front
If a plant has the genotype Bb, what are the possible gametes it can produce?
Back
The possible gametes are B and b.
7.
FLASHCARD QUESTION
Front
In a cross between two heterozygous plants (Bb x Bb), what is the probability of obtaining a homozygous recessive offspring?
Back
The probability is 25%.
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