Select the statement that best describes the difference between a gene and an allele
A) Genes code for a single protein or a single trait while an allele can code for many traits or many proteins.
B) Genes follow Mendelian patterns of inheritance while alleles follow non-Mendelian patterns of inheritance.
C) Alleles are found on chromosomes while genes are independent.
D) Genes express a specific trait while alleles are variations of a particular gene that result in the variation we see in a genetic individual trait.
D
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Which of the following is a polysaccharide commonly found in the ground substance of connective tissues?
a) Hyaluronic acid b) Melatonin c) Cholesterol d) Glycogen e) Starch
Antigens that trigger allergic reactions are called
A) interferons. B) microbes. C) pyrogens. D) allergens. E) agglutinins.
What function do transitional epithelia have?
A. absorption B. filtration C. resistance to friction D. stretching
Apoptosis
A. involves departure from the cell cycle. B. involves the destruction of a cell. C. occurs at the restriction checkpoint. D. All apply.