Imagine in lemmings, that gray fur color (G) is dominant over white (g). There is another gene, called color, and individuals must have at least one “C” allele for gray color to be expressed. You obtain a white lemming that is heterozygous for gray fur color. What is its genotype?
A. ggcc
B. GgCC
C. Ggcc
D. ggCc
E. gc
C. Ggcc
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Synaptic integration means that
a. positive or excitatory stimuli produce an excitatory postsynaptic potential. b. the positive and negative ions neutralize each other. c. excitatory and inhibitory signals are summed in a receiving neuron. d. the adjacent neurons interact so that excitatory and inhibitory stimuli cancel each other out. e. all of these occur.
Which of the following is the proper sequence for mitosis (I. metaphase, II. telophase, III. prophase, IV. anaphase)?
A) III, IV, I, II B) I, III, IV, II C) III, I, IV, II D) I, II, III, IV E) IV, I, III, II
A holoenzyme is a combination of a protein and one or more substances called
What will be an ideal response?
Through an electron microscope, chromatin will have the appearance of beads on a string. What protein(s) will "tighten" the beads to create a pronounced zigzag appearance?
A. scaffolding proteins B. NAP-1 C. H1 histone D. Sp1 E. bromodomain proteins