Pedigree

What does the term 'genotype' refer to?

• The physical appearance of an organism.

• The genetic makeup of an organism.

• The environmental influences on an organism.

• The evolutionary history of an organism.

What does an open circle represent in a pedigree chart?

• Not Affected Female

• Affected Female

• Not Affected Male

• Affected Male

How can you determine if a trait is dominant or recessive using a pedigree?

• By observing the inheritance pattern and whether the trait skips generations.

• By counting the number of affected individuals in the pedigree.

• By analyzing the physical characteristics of the individuals.

• By determining the age of the individuals in the pedigree.

What does the term 'phenotype' refer to?

• The genetic makeup of an organism.

• The observable characteristics of an organism.

• The evolutionary history of an organism.

• The habitat in which an organism lives.

How many generations are typically shown in a pedigree chart?

• 2

• 3

• 4

• 5

What is a dominant trait?

• A trait that is expressed when at least one dominant allele is present.

• A trait that is only expressed when two recessive alleles are present.

• A trait that is always expressed regardless of the alleles present.

• A trait that can be masked by a dominant allele.

What is the significance of the square and circle symbols in a pedigree chart?

• Squares represent females, and circles represent males.

• Squares represent males, and circles represent females.

• Squares represent both genders, and circles represent none.

• Squares and circles have no significance in a pedigree chart.

What does it mean if a pedigree shows a trait that appears in every generation?

• The trait is likely dominant.

• The trait is likely recessive.

• The trait is likely linked to the X chromosome.

• The trait is likely influenced by environmental factors.

What does a filled circle represent in a pedigree chart?

• Affected Female

• Unaffected Female

• Affected Male

• Unaffected Male

What is a recessive trait?

• A trait that is expressed only when two recessive alleles are present.

• A trait that is always expressed regardless of the alleles present.

• A trait that can be expressed with just one dominant allele.

• A trait that is never expressed in the presence of a dominant allele.