A ____ forest included low swamps with giant ferns, horsetails, club mosses, seed ferns, and early gymnosperms
a. Jurassic
b. Silurian
c. Devonian
d. Ordovician
e. Carboniferous
e
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Which of the following statements is TRUE?
A. The leading strand is replicated continuously for the entire length of the chromosome, e.g. while the lagging strand has multiple origins of replication. B. The lagging strand is synthesized in a semiconservative fashion while the leading strand is synthesized in a conservative fashion. C. Synthesis of the lagging strand requires more DNA helicase enzymes than synthesis of the leading strand. D. The lagging strand has a higher mutation rate than the leading strand. E. None of these are true
Which cells are located in the brain and spinal cord of vertebrates?
a. interneurons b. motor neurons c. afferent neurons d. efferent neurons e. afferent and efferent neurons
Upon stimulation by a peptide hormone, the target cell converts ATP to the second messenger,
___________________. Fill in the blank(s) with the appropriate word(s).
Sidney Brenner proved that the triplet code is, in fact, nonoverlapping. Assuming a nonoverlapping code, how many complete codons would the following sequence encode before encountering a stop codon? 5? - AUGCGAUUAUAGUGC - 3?
What will be an ideal response?