Inheritance

What is a genotype?

• A segment of DNA on a chromosome that codes for a specific trait

• An organism's physical appearance or visible traits

• An alternative form of a gene

• An organism's genetic makeup or allele combinations

What is a phenotype?

• A segment of DNA on a chromosome that codes for a specific trait

• An organism's physical appearance, or visible traits

• An alternative form of a gene

• An organism's genetic makeup, or allele combinations

What is a Gene?

• A segment of DNA on a chromosome that codes for a specific trait

• An organism's physical appearance, or visible traits

• An alternative form of a gene

• An organism's genetic makeup, or allele combinations

What is an allele?

• A segment of DNA on a chromosome that codes for a specific trait

• An organism's physical appearance, or visible traits

• An alternative form of a gene

• An organism's genetic makeup, or allele combinations

What does homozygous mean?

• A diagram that shows the occurrence of a genetic trait in several generations of a family

• Having two identical alleles for a particular trait

• A person who has one recessive allele for a trait, but does not have the trait

• Having two different alleles for a particular trait

What does heterozygous mean?

• A diagram that shows the occurrence of a genetic trait in several generations of a family

• Having two identical alleles for a particular trait

• A person who has one recessive allele for a trait, but does not have the trait

• Having two different alleles for a particular trait

What does it mean to be a carrier?

• A diagram that shows the occurrence of a genetic trait in several generations of a family

• Having two identical alleles for a particular trait

• A person who has one recessive allele for a trait, but does not have the trait

• Having two different alleles for a particular trait

What is a pedigree?

• A diagram that shows the occurrence of a genetic trait in several generations of a family

• Having two identical alleles for a particular trait

• A person who has one recessive allele for a trait, but does not have the trait

• Having two different alleles for a particular trait

In terms of genetics, what does dominant mean?

• Describes a trait that covers over, or dominates, another form of that trait

• Mendel's law stating that two alleles for each trait separate during meiosis

• Describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear

• Mendel's law, stating that a random distribution of alleles occurs during the formation of gametes

In terms of genetics, what does recessive mean?

• Describes a trait that covers over, or dominates, another form of that trait

• Mendel's law stating that two alleles for each trait separate during meiosis

• Describes a trait that is covered over, or dominated, by another form of that trait and seems to disappear

• Mendel's law, stating that a random distribution of alleles occurs during the formation of gametes