Queen Victoria had an allele for alkaptonuria that originated by mutation in one of her parents. Indicate whether the statement is true or false
F
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Which of the following is/are true of the sheath of Leptothrix?
A. May contain ferric and manganic oxides B. Helps protect against microbial predators C. Attaches bacteria to surfaces D. All of the choices are correct.
The steady state so vital to life is possible because
A) the cell cannot convert energy from one form to another. B) all cells are autotrophic. C) the cell continually takes up energy from the environment. D) all reactions are at equilibrium. E) all reactions are exothermic.
IP3 receptors are associated with
A) plasma membranes. B) intracellular membranes. C) mitochondrial membranes. D) ER membranes. E) lysosomes.
The two amino acids depicted above both have side groups (R groups) that are
a. acidic and polar. b. uncharged and nonpolar. c. basic and polar. d. positively and negatively charged and nonpolar. e. uncharged and polar.