A gene in DNA is the code for ________.
a. a sequence of amino acids
b. a sequence of glucose molecules
c. a sequence of fatty acids used in a fat
d. a sequence of sugars
Ans: a. a sequence of amino acids
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Nervous tissue consists mainly of what two major types of cell?
A. microglia and Schwann cells B. glial cells and neurons C. Schwann cells and glial cells D. neurons and fibrocytes E. astrocytes and Schwann cells
Along with lipids, the skin of amniotes is filled with ____ to help prevent water loss
a. squalene b. bone c. keratin d. collagen e. albumin
Penicillin G is frequently injected but not normally given orally because it is rapidly degraded in the stomach.
Answer the following statement true (T) or false (F)
Before cell division of somatic cells, each chromosome must be replicated. After replication, the resulting two parts of each chromosome are held together by cohesin at the centromere. These two parts are referred to as:
A. Sister chromatids B. Homologous chromosomes C. Daughter chromosomes D. Kinetochores E. Genes