Which of the following characteristics does NOT distinguish the archaea from the bacteria?

A) the types of transfer RNA used
B) the rRNA sequences present
C) the deoxyribonucleotides
D) cell wall composition
E) cell membrane composition


Ans: C) the deoxyribonucleotides

Biology & Microbiology

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Answer the following statement true (T) or false (F)

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Friedrich Miescher, after he began to study the chemical composition of the nucleus, was one of the first to ____

a. propose the nuclear structure of the H5N1 virus b. discover that the nucleus contained DNA but no proteins c. discover that human and mice chromosome chemistry differs greatly d. isolate DNA and propose its structure e. isolate and purify a cellular organelle

Biology & Microbiology

In plants, ________ induces elimination of duplicated genes.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Compare autonomous and nonautonomous controlling elements in maize

What will be an ideal response?

Biology & Microbiology