What is a Punnett Square?
Punnett Squares and Pedigrees

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Science
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6th - 8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A Punnett Square is a diagram used to predict the genetic makeup of offspring from two parents based on their genotypes.
2.
FLASHCARD QUESTION
Front
What does a Pedigree Chart show?
Back
A Pedigree Chart shows how a trait is passed through multiple generations of a family.
3.
FLASHCARD QUESTION
Front
What is a dominant gene?
Back
A dominant gene is a gene that expresses its trait even when only one copy is present.
4.
FLASHCARD QUESTION
Front
What is a recessive gene?
Back
A recessive gene is a gene that only expresses its trait when two copies are present.
5.
FLASHCARD QUESTION
Front
Can two right-handed parents have a left-handed child?
Back
Yes, if both parents pass on a recessive left-handed gene.
6.
FLASHCARD QUESTION
Front
What does heterozygous mean?
Back
Heterozygous means having two different alleles for a particular gene.
7.
FLASHCARD QUESTION
Front
What does homozygous mean?
Back
Homozygous means having two identical alleles for a particular gene.
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