What is a pedigree?
Genetics (Pedigree)

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•
Biology
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
A pedigree is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors, often used to track genetic traits.
2.
FLASHCARD QUESTION
Front
What does it mean if a trait is recessive?
Back
A recessive trait is one that only appears in an individual if both alleles for that trait are recessive. It can be masked by a dominant trait.
3.
FLASHCARD QUESTION
Front
What are genotypes?
Back
Genotypes are the genetic constitution of an individual, represented by the alleles inherited from the parents (e.g., AA, Aa, aa).
4.
FLASHCARD QUESTION
Front
What are phenotypes?
Back
Phenotypes are the observable characteristics or traits of an individual, resulting from the interaction of its genotype with the environment.
5.
FLASHCARD QUESTION
Front
What is the difference between homozygous and heterozygous genotypes?
Back
Homozygous genotypes have two identical alleles for a trait (e.g., AA or aa), while heterozygous genotypes have two different alleles (e.g., Aa).
6.
FLASHCARD QUESTION
Front
How can you determine the probability of a child inheriting a recessive trait?
Back
You can use a Punnett square to predict the probability of offspring inheriting specific genotypes based on the parents' genotypes.
7.
FLASHCARD QUESTION
Front
What is a dominant trait?
Back
A dominant trait is one that appears in the phenotype even if only one allele is present. It can mask the expression of a recessive trait.
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