The cell wall component algin is
a. found in the brown algae.
b. used in the production of ice cream.
c. used as a medium on which microorganisms are grown.
d. both a and b.
a
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In humans, XO individuals are females with Turner syndrome and XXY individuals are males with Klinefelter syndrome. Which of the following events cannot give rise to a Klinefelter male?
A) nondisjunction at meiosis I in the mother B) nondisjunction at meiosis II in the mother C) nondisjunction at meiosis I in the father D) nondisjunction at meiosis II in the father E) All of the choices could give rise to a Klinefelter male.
Frameshift mutations may involve
a. substitution of nucleotides. b. substitution of codons. c. substitution of amino acids. d. insertion of one to several base pairs. e. all of these
The term ________ involves the study of the blood components that fight infection
A) antisepsis B) chemotherapy C) etiology D) serology E) bioremediation
What is the next frontier in the drinking water industry?
A- bottling B- evaporation C- distillation D- condensation E- desalination