Sugars are characterized by all EXCEPT which one
of the following functional groups?
a. hydroxyl
b. carbonyl
c. ketone
d. aldehyde
e. methyl
Answer: e
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The 5' upstreamregions of transcriptionally active genes generally donot exhibit which of the following characteristics?
A. contain binding sites for known regulatory proteins B. relatively fewer nucleosomes C. increased in vitro sensitivity to DNase I D. increased concentration of histone H1
Messenger RNA is:
a. information copied or transcribed from DNA. b. comprised of rRNA. c. comprised of tRNA. d. referenced by DNA. e. used by cells to communicate with each other.
Which two structures play direct roles in permitting bacteria to adhere to each other, or to other surfaces?
1. capsules 2. endospores 3. fimbriae 4. plasmids 5. flagella a) 3 and 4 b) 3 and 5 c) 1 and 2 d) 1 and 3 e) 2 and 3
In seed plants the entire male gametophyte is transported to the female.
Answer the following statement true (T) or false (F)