Which of the following represents a gamete with a dominant allele?
A. bb
B. b
C. AA
D. Aa
E. A
Answer: E
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In marine and freshwater environments, the penetration of sunlight and the mixing of nutrients, oxygen, and waste products are the dominant factors controlling the microbial community.
Answer the following statement true (T) or false (F)
Which process in the human digestive system best illustrates mechanical digestion?
a. absorption b. amylase c. bacterial action in the large intestine d. chewing e. pepsin
Asbestos is a material that was once used extensively in construction. One risk from working in a building that contains asbestos is the development of asbestosis caused by the inhalation of asbestos fibers. Cells will phagocytize asbestos, but are not able to degrade it. As a result, asbestos fibers accumulate in _____.
A) mitochondria B) ribosomes C) peroxisomes D) lysosomes
A woman who has blood type A, has a daughter who is type O positive and a son who is type B negative. Rh positive is a simple dominant trait over Rh negative. Which of the following is a possible genotype for the son?
A) IBIB B) IBIA C) ii D) IBi E) IAIA