What type of gene expression are the ABO blood types an example of?
A. complete dominance
B. codominance
C. incomplete dominance
D. recessiveness
E. polymorphism
B
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What is a sesamoid bone?
A. A bone growing within some cartilages in response to pressure B. A bone that forms within some tendons in response to stress C. A bone that forms in the cranium in response to trauma D. A bone made of hyaline cartilage E. A bone made of dense regular connective tissue
Norepinephrine is a catecholamine
Indicate whether this statement is true or false.
Match the following:
A) Type I cells B) Type II cells C) Respiratory bronchioles D) Alveolar duct E) Segmental bronchi 1) No exchange of gases occurs here. 2) Secrete a fluid containing surfactant. 3) Where the respiratory zone of the lungs begins. 4) Composed of simple squamous epithelium. 5) Terminates in alveoli. 6) Composed of cuboidal cells. 7) The respiratory membrane is composed of fused basement membrane of the capillary walls and ________.
Name the two pigments contained in the epidermis
A) carotene and melatonin B) creatinine and melatonin C) carotene and melanin D) keratin and melanin E) carnitine and melanoma