Which of the following is CORRECT regarding the viral envelope?
A) It contains only viral proteins.
B) It contains only host cell proteins.
C) It is composed of sterols.
D) It is composed of cellular phospholipid membrane, cellular and viral proteins.
E) It is composed of sterols of viral proteins only.
D
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If a certain stretch of DNA reads ATTACGAG, what would the corresponding amino acid sequence be?
What will be an ideal response?
Associations of fungi and plant roots are called
A. root forks. B. mycorrhizae. C. lichens. D. gnetophytes. E. rhizoids.
Many primate adaptations are a response to
living in
a. warm climates. b. trees. c. underground burrows. d. deserts. e. grasslands
If the 14C to 12C ratio present in a fossil is 25% of that in living organism, how many years have passed since this
fossilized organism died?
a. 1,432 b. 2,865 c. 5,730 d. 11,460 e. 17,190