The ring structure of glucose indicates that it is a(n)
A. monosaccharide.
B. fatty acid.
C. disaccharide.
D. amino acid.
E. nucleotide.
A. monosaccharide.
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Which group represents the oldest living plant lineage?
a. hornworts b. liverworts c. mosses d. ferns e. conifers
When the dorsal lip of the blastopore is removed from one developing embryo and successfully implanted into a different location in a second embryo of the same species at the same developmental stage, which of the following is the most likely result?
(A) Two neural tubes form in the second embryo. (B) Both embryos continue to develop normally. (C) The second embryo fails to develop a head. (D) The second embryo splits into two almost immediately.
In the respiratory tract, the smallest and most numerous passageways are the ___________.
a) tracheas b) bronchioles c) bronchi d) larynxes
What types of genes are transcribed by RNA polymerase I? What is the structure of the promoter of such genes?
What will be an ideal response?