If a honeybee moves straight up the comb in its dance, where do recruits fly to find food?
a. straight towards the sun
b. directly away from the sun
c. at a 90 degree angle to the sun
d. at a 45 degree angle to the sun
e. This dance does not inform recruits of food location.
a
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Elongation factors translocate the ribosome in the 3? direction by a distance of __________
A) one codon B) one nucleotide C) two nucleotides D) two codons E) three codons
If one is testing a goodness of fit to a 9:3:3:1 ratio, how many degrees of freedom would be associated with the Chi-square analysis?
What will be an ideal response?
Human skin color is thought to be determined by at least three pairs of alleles. If dark skin (D) is dominant to light skin (d), the genotypes that will produce the darkest skin are
A. D1d1 D2d2 D3d3. B. D1D1 D2d2 d3d3. C. d1d1 D2D2 D3d3. D. D1d1 D2d2 D3D3.
Which of the following is true regarding cultivation and isolation of animal viruses?
a. Diploid cell culture lines, developed from human embryos, are widely used for culturing viruses that require a human host. b. The preferred and widely used method of viral isolation and growth is via growth in an embryonated egg. c. Mouse models are available for virtually all human viral infections and can be routinely used for vaccine development. d. Viruses can be easily grown in liquid culture without any other organisms present.