Exam 12: Mendel, Genes, and Inheritance

A couple are both heterozygous for the dominant allele for polydactyly. They want to have three children. What is the probability that all three children will have polydactyly? ​

Human skin color is an example of ____, while sickle-cell anemia is an example of ____. ​

If purple flower color is dominant in pea plants, a cross between true breeding P generation purple and white plants will result in ____. ​

Identify the disorder caused by a dominant allele. ​

Pairs of alleles are found at a particular ____ on a pair of ____. ​

Which notation represents a testcross? (A "dash" indicates the allele's identity is unknown.)​

What is the main premise of the blending theory of inheritance that predominated before 1900? ​

What is the key difference between incomplete dominance and codominance? ​

If a gene has multiple alleles, ____. ​

If your mother and father are both heterozygous for Huntington's disease, which is caused by a dominant allele, the odds of you having the disorder are ____. ​

A patient presents with the following symptoms: anemia, heart failure, pneumonia, paralysis, and abdominal pain. After learning about their family history, you run a genetic test for which disorder? ​

If your mother and father both have cystic fibrosis, which is caused by a recessive allele, the odds of you having cystic fibrosis are ____. ​

A ____ individual is always part of a testcross. ​

An individual heterozygous for sickle-cell disease produces both normal and abnormal polypeptides. This is an example of ____. ​