The letter designation of human blood type is controlled by a single gene with three alleles (the allele that produces type A blood, the allele that produces type B blood, and the allele that produces type O blood). This is an example of _______.
a) incomplete dominance
b) a polygenic trait
c) environmental influence
d) multiple allele inheritance
Ans: d) multiple allele inheritance
You might also like to view...
Which of the following is not true of the outer membrane?
A. Gram-positive bacteria have an outer membrane. B. The lipid portion of the lipopolysaccharide layer is termed endotoxin. C. Porins create channels through the outer membrane. D. The innermost layer is a phospholipid bilayer. E. The uppermost layer is made of lipopolysaccharide.
Which of the following would be the most likely cause of deep venous thrombosis?
a. anemia b. decreased skeletal muscle action c. high blood pressure d. increased skeletal muscle action e. low blood pressure
Activated B cells differentiate into __________.
What will be an ideal response?
How long does it take to proceed from prophase I to metaphase I in oogenesis?
A. There is a pause for about a month. B. There is a pause for a day. C. There is usually a pause of about 1 hour. D. It varies, but on the order of years. E. One follows directly after the other.