Renewable energy sources ____
a. have no disadvantages
b. include coal-fired power plants
c. have by-products that increase acid rain
d. do not produce clean energy
e. do not produce greenhouse gases
ANSWER: e
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How are open reading frames or exons predicted from genomic sequence?
A) If the open reading frame is at least 10 sense codons long, it is considered an exon. B) If the sequence is absent from mRNA, it is considered an exon. C) If there is a splice donor and accept or site at the ends of the open reading frame, it is considered an exon. D) If an open reading frame is longer than 21 sense codons, it is predicted to be an exon. E) If an enhancer and promoter sequence are present, the downstream sequence is considered an exon.
In red blood cells, carbon dioxide binds directly to the
a. heme group. b. iron atom. c. oxygen molecule. d. the globin chains. e. magnesium atom.
Tunicates are ____ in the phylum ____
a. echinoderms; Echinodermata b. freshwater fish; Chordata c. urochordates; Chordata d. urochordates; Echinodermata e. echinoderms; Chordata
A(n) ________ is a recording of the electrical activities of the heart
Fill in the blank(s) with correct word