11.3: Nonmendelian Genetics

A rabbit with white fur was crossed with a rabbit with black fur.  The cross produced offspring with black and white fur. This type of inheritance is known as

• dihybrid recessive
• dominance
• codominance
• multiple alleles

People with Type AB blood have two dominant alleles, I^A and I^B. Since the two alleles are equally dominant, they are called

• multiple alleles

• incomplete alleles

• codominant alleles

• sex linked alleles

Which two genotypes would have the same blood type?

• I^AI^A and I^Ai
• I^BI^B and I^AI^B
• I^Bi and ii
• I^AI^A and I^AI^B

7.  A baby has type AB blood.  What could the genotypes of the baby’s parents be?

• I^Ai x ii
• I^BI^B x I^BI^B
• I^AI^A x I^Bi
• ii x ii

For any given trait there may be more than two choices for alleles, the trait may be inherited on more than one gene or chromosome, and there are many types of inheritance patterns it may follow, however, for each trait you may only inherit how many alleles?

• 1
• 2
• 23
• 46

A roan cow shows co-dominance in fur color (orange and white). What is the phenotype ratio expected if a roan cow and a roan steer mate together?

• 4: Orange and White
• 1: Orange : 1 White
• 2 Orange: 2 Orange and White: 0 White
• 1: Orange: 2 Orange and White: 1 White

A red flowered plant (RR) breeds with a White flowered plant (WW). The gene for petal color in these plants expresses incomplete dominance.  What percentage of the offspring will have pink (RW) flowers?

• 0%
• 25%
• 50%
• 100%

What is it called when two traits are blended?

• Co-dominance
• Incomplete Dominance
• Pedigree
• Sex-linked

What is it called when both traits are expressed and neither allele is dominant?

• Incomplete Dominance
• Co-dominance
• Pedigree

An example of Incomplete dominance is 

• A red parent and a blue parent makes purple offspring.
• A red parent and blue parent makes a red and blue offspring.