Respond to the following statements with reference to the four glands or structures of the mammalian gastrointestinal tract listed below.
A. Initial digestion of starch is facilitated by its secretions.
B. The enzyme pepsin is produced there.
C. The enzyme aminopeptidase is produced there.
D. The fat-digesting enzyme, lipase, is formed there.
A. Salivary gland
B. Stomach mucosa
C. Intestinal mucosa
D. Pancreas
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A woman with blood type B and a man with blood type A could have children with which of the following phenotypes?
A. AB or O B. A, B, or O C. A, B, AB, or O D. AB only
The phenotype expressed by a single genotype can be affected by environmental conditions
Indicate whether the statement is true or false
For a given pedigree of a certain trait, there is a family with 8 children (2 sons and 6 daughters). Neither of the sons in this family have the trait but all 6 daughters do. The mother does not show the trait or carry the trait but the father does. What is the most likely form of inheritance for this trait?
a) autosomal recessive b) Y-linked c) X-linked recessive d) X-linked dominant
The major diversification of fishes occurred in the Devonian period; since that time fish have changed little.
Answer the following statement true (T) or false (F)