
Pedigree charts 807
Flashcard
•
Biology
•
8th Grade
•
Practice Problem
•
Easy
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a pedigree chart?
Back
A pedigree chart is a diagram that shows the occurrence and appearance of phenotypes of a particular gene or organism and its ancestors, used to analyze the inheritance of traits.
2.
FLASHCARD QUESTION
Front
What does it mean for an individual to be heterozygous?
Back
An individual is heterozygous when they have two different alleles for a specific gene, one inherited from each parent.
3.
FLASHCARD QUESTION
Front
How can you identify carriers in a pedigree chart?
Back
Carriers are individuals who have one dominant and one recessive allele for a trait. In a pedigree chart, they are typically represented by a half-filled symbol.
4.
FLASHCARD QUESTION
Front
What is the significance of the first generation in a pedigree chart?
Back
The first generation in a pedigree chart represents the initial set of individuals from which the subsequent generations are derived, often referred to as the parental generation.
5.
FLASHCARD QUESTION
Front
How do you determine the number of offspring in a pedigree chart?
Back
The number of offspring can be determined by counting the symbols connected to the parents' symbols in the pedigree chart.
6.
FLASHCARD QUESTION
Front
What does it mean if a trait is dominant in a pedigree chart?
Back
A dominant trait is one that is expressed in individuals who have at least one dominant allele. It typically appears in every generation.
7.
FLASHCARD QUESTION
Front
What does it mean if a trait is recessive in a pedigree chart?
Back
A recessive trait is expressed only when an individual has two recessive alleles. It may skip generations if individuals carry one dominant allele.
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