Which of the following is NOT a known characteristic of any dinosaurs?
a. bright coloration
b. bipedal posture
c. feathers
d. gills for breathing underwater
e. posture with heads upright and tails off the ground
D
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Comparisons of protein similarity between species can reveal the degree of genetic kinship because
a. the number of protein variations is limited. b. specific amino acids are dictated by known nucleotide sequences in DNA. c. gel electrophoresis converts proteins to nucleotides. d. protein can be hybridized with DNA. e. DNA is made by directions stored in proteins.
If a marine invertebrate were placed into freshwater, it would have difficulty surviving because:a
it would not be able to obtain food. b. it would have difficulty with osmoregulation. c. it would not experience the temperature stability found in the oceans. d. it would not be able to obtain oxygen due to the absence of waves in the water. e. it would have difficulty with buoyancy.
Which of the following pairs is mismatched?
A) DNA polymerase — makes a molecule of DNA from a DNA template
B) RNA polymerase — makes a molecule of RNA from an RNA template
C) DNA ligase — joins segments of DNA
D) transposase — insertion of DNA segments into DNA
E) DNA gyrase — coils and twists DNA
What level of taxonomy is Caudatum Cells cylindrical long, and pointed at one end?
A) Kingdom B) Family C) Phylum D) Genus E) Species