Human Inheritence

What is the role of a Punnett square in genetics?

• It predicts the possible genotypes and phenotypes of offspring.
• It determines the physical traits of an individual.
• It shows the structure of DNA molecules.
• It identifies the number of chromosomes in a cell.

What is the difference between a genotype and a phenotype?

• Genotype refers to the genetic makeup of an organism, while phenotype refers to the physical expression of traits.
• Genotype is the observable characteristics, while phenotype is the genetic sequence.
• Genotype is the combination of alleles in an individual, while phenotype is the potential for those alleles to produce traits.
• Genotype is the trait that is visible, while phenotype is the underlying genetic information.

What is the term for the physical expression of a gene in an organism?

• genotype
• phenotype
• chromosome
• allele

What is the term for two alleles that control the phenotype of a trait?

• genotype
• phenotype
• chromosome
• polygenic inheritance

What is the term for a phenotype that is a blend of the parents’ phenotypes?

• incomplete dominance
• codominance
• polygenic inheritance
• genotype

What is polygenic inheritance?

• A type of inheritance where one trait is controlled by one gene.
• An inheritance pattern where multiple genes influence a trait.
• A situation where only dominant genes are expressed.
• An inheritance model that predicts phenotypes based on a single gene.

What is the term for a diagram that shows the genetic relationships between family members?

• pedigree
• genotype
• Punnett square
• chromosome

What does it mean for an organism to be homozygous for a trait?

• The two genes in a hybrid are dominant.
• The two alleles in a genotype are the same.
• The two traits in a phenotype are different.
• The organism has one dominant and one recessive allele.

Which term describes the genetic makeup of an organism?

• genotype
• phenotype
• chromosome
• allele

What is codominance in genetics?

• A genetic scenario where one allele is completely dominant over another.
• A genetic scenario where both alleles contribute equally and visibly to the phenotype.
• A situation in which only one allele's traits are expressed.
• A condition where traits blend together to form an intermediate phenotype.