Vitamins are ________ substances and minerals are ________ substances that perform essential metabolic functions
a. inessential / essential
b. organic / inorganic
c. essential / inessential
d. inorganic / organic
b
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A mutation that results in the addition or deletion of a single nucleotide that radically changes the amino acid sequence of the resulting polypeptide is known as a ________ mutation.
Fill in the blank(s) with the appropriate word(s).
On which portion of the hemoglobin molecule does carbon dioxide bind?
a. protein chain b. cholesterol side chains c. iron in the cytoplasm d. heme group e. nuclear side chains
The usual, naturally-occurring mechanism that prevents development of cancer is the action of ____
a. cytotoxic T cells b. oncogenes c. radiation d. chemotherapy e. carcinogens
The law of segregation would predict that the F2 progeny of F1 heterozygous plants will exhibit a __________
A) 3:1 phenotypic ratio B) 9:3:3:1 phenotypic ratio C) 1:2:1 genotypic ratio D) 9:3:3:1 phenotypic ratio and 1:2:1 genotypic ratio E) 3:1 phenotypic ratio and 1:2:1 genotypic ratio