For type I diabetes, 15 genes on four different chromosomes are known to influence this
disease. Thus, this disease is __________.
a. polygenic
b. pleiotropic
c. genomic
d. a genetic marker
A
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A new organism was identified that contained arsenic in place of phosphate in its DNA double helix structure. Based upon this information alone, it can be determined that this change will greatly alter the information encoded by this genetic material.
Answer the following statement true (T) or false (F)
What did the classic experiments of Allard and Gardner demonstrate regarding the flowering behavior of Maryland Mammoth?
A. Flowering depends on temperature. B. Flowering depends on leaf size. C. Flowering depends on plant height. D. Flowering depends on day length.
Most segmentation genes code for:a
transcription factors. b. genetic switches such as operators. c. repressors. d. insulin-like growth factors. e. morphogens.
The chemicals in "beta-blocker" drugs reduce anxiety symptoms by:
A) binding to beta-receptors, thereby preventing adrenaline from binding to the cell. B) causing cholesterol to bind to beta-receptors, thereby blocking adrenaline from binding to the cell. C) causing carbohydrates to bind to beta-receptors, thereby blocking adrenaline from binding to the cell. D) preventing receptor proteins from binding to the lipid bilayer of a cell membrane. E) preventing receptor proteins from binding to enzymatic proteins.