Typical eukaryotic genomes are composed of ________ chromosomes
A) multiple linear
B) multiple circular
C) a single circular
D) a single linear
E) both linear and circular
A
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If a virus is referred to as naked, it means it lacks which structure?
a. Protein coat b. Capsid c. Envelope d. Nucleocapsid
Four of the five features listed below are
characteristic of adult sea stars. Select the exception. a. spiny skin b. tube foot c. water-vascular system d. bilateral symmetry e. ampulla
Which of the following provides he weakest evidence that mitochondria were once free living prokaryotes
A. Mitochondrial ribosomes resemble those of prokaryotes B. Mitochondria have DNA that is circular and does not have associated protein C. Enzyme pathways on mitochondrial membranes resemble those found on modern prokaryotes membranes D. Mitochondria reproduce by a process similar to binary fission E. Mitochondria and prokaryotes both are found in a variety of sizes
All of the following are characteristics of modern amphibians except:
a. Ten pairs of cranial nerves b. Separate sexes c. Smooth moist skin d. Endothermic e. Bony skeleton