Beyond Mendel Quiz Review

This type of inheritance pattern is a blending of both traits.

• incomplete dominance

• co-dominance

• complete dominance

Type of inheritance causes both traits to be expressed equally in the heterozygote?

• Complete Dominance

• Incomplete Dominance

• Co-Dominance

• Sex-linked

Having more than two alleles for a specific trait.  For example, blood types can be A, B or O.

• epistasis
• multiple alleles
• karyotype
• polygenic inheritance

The different forms of a gene are called

• traits

• pollinators

• alleles

• hybrids

The physical appearance of an organisms is its

• Genotype

• Phenotype

• characteristic

• Heterozygous

Examples include skin color and height (the individual's phenotype exists somewhere along a spectrum)

• polygenic inheritance

• multiple alleles

• linked genes

• incomplete dominance

A trait that is located on the X chromosome is called

• Multiple alleles

• Codominance

• Polygenic Inheritance

• X-linked traits

Which statement pertains to Mendel's law of segregation?

• Two alleles for each trait separate during meiosis.

• Homozygous organisms are called hybrids.

• Dominant traits are visible.

• Allele pairs are called a genotype.

You and your colleagues are constructing a pedigree for a boy with cystic fibrosis. The individual’s younger brother has also been diagnosed with cystic fibrosis. How would these brothers be represented in a pedigree?

• Both would be represented as completely shaded squares.

• The older brother would be a shaded square, while the younger brother would be a half-shaded square.

• Both would be represented as unshaded squares.

• Both would be represented as completely shaded circles.

Traits controlled by genes on the X chromosome are called sex-linked traits. In what individuals are recessive sex-linked traits more commonly expressed?

• females because they have two X chromosomes

• males because they have only one X chromosome

• females because they have no Y chromosome

• males because they have a Y chromosome