Patterns of inheritance Pt. 2

What is the definition of homozygous?

• When an organism has two identical alleles for a specific gene

• When an organism has two different alleles for a specific gene

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the definition of heterozygous?

• When an organism has two identical alleles for a specific gene

• When an organism has two different alleles for a specific gene

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the F1 generation?

• When an organism has two identical alleles for a specific gene

• When an organism has two different alleles for a specific gene

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the F2 generation?

• When an organism has two identical alleles for a specific gene

• When an organism has two different alleles for a specific gene

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the P generation?

• When an organism has two identical alleles for a specific gene

• When an organism has two different alleles for a specific gene

• The parental generation in a breeding experiment

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the definition of dominant?

• An allele that is expressed as a trait only when present in the homozygous condition

• An allele that is expressed as a trait when present in either the homozygous or heterozygous condition

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is the definition of recessive?

• An allele that is expressed as a trait only when present in the homozygous condition

• An allele that is expressed as a trait when present in either the homozygous or heterozygous condition

• The first generation of offspring resulting from the cross of two parental individuals

• The second generation of offspring resulting from a cross between F1 generation individuals

What is a Punnett Square used for?

• To predict the possible genotypes of offspring in a genetic cross

• To track the inheritance of genetic disorders

• To represent the genetic relationships within a family

• To determine the existence of more than two alleles for a specific trait

What is a pedigree?

• To predict the possible genotypes of offspring in a genetic cross

• To track the inheritance of genetic disorders

• To represent the genetic relationships within a family

• To determine the existence of more than two alleles for a specific trait

What is incomplete dominance?

• A genetic situation in which one allele does not completely dominate another allele, resulting in a blended phenotype

• The existence of more than two alleles for a specific trait in a population

• A genetic situation in which both alleles in a heterozygous individual are expressed, leading to a phenotype where both traits are visible

• An allele that is expressed as a trait only when present in the homozygous condition