DNA and RNA are alike in
a. the pentose sugar.
b. all the nitrogenous bases used to assemble
the genetic code.
c. the number of strands.
d. their function in genetics.
e. none of these.
E
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The process of ____________________ equalizes the amount of X chromosome gene products in both sexes Fill in the blank(s) with the appropriate word(s)
Diatoms have both chlorophyll a and chlorophyll ________
Fill in the blank with correct word.
Most biologists recognize __________ domains
a. 3 b. 4 c. 5 d. 6 e. 12
All of the following pertain to virus envelopes except they
A. are gained as a virus leaves the host cell membrane. B. are located between the capsid and nucleic acid. C. contain special virus proteins. D. help the virus particle attach to host cells. E. are found primarily on animal viruses.