You isolate a cell infected with an adenovirus. What are you most likely going to see when you examine the cell?
A) It is a bacterium.
B) It is undergoing mitosis.
C) Reverse transcriptase is present in the nucleus.
D) It does not have a nucleus.
Answer: B
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When observing the skeleton of a snake, you see the remains of hip and hind leg bones associated with four legged animals. These bones are called
A. convergent traits. B. analogous structures. C. vestigial structures. D. homologous structures. E. both homologous and analogous structures.
The sperm head encloses a compact nucleus and is capped by a vesicle called what?
A. Sertoli cell B. flagellum C. acrosome D. vas deferens E. epididymis
The concept that a set of three nucleotides specifies a particular amino acid provides the basis for
a. the one gene, one enzyme hypothesis. b. the one gene, one polypeptide hypothesis. c. the genetic code. d. biochemical reactions among nucleic acids. e. Mendelian genetics.
Which of the following characteristics is present in all chordates?
A. gills B. notochord C. vertebrae D. All of the above are correct.