A common herbicide that crops can be engineered to resist is ________
A) glyphosphate
B) ethanol
C) diesel
D) methane
E) ethane
A
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A gene created from the fusion of two gene fragments is considered a
A. tumor-suppressor gene. B. proto-oncogene. C. structural gene. D. regulatory gene. E. chimeric gene.
In non-dividing cells, the coiling and folding of DNA is organized into bead-like structures called nucleosomes, which are the result of DNA being wrapped around a protein core of histones.
a. true b. false
In Drosophila and Lepidoptera, sex-chromosome mosaicism produces what type of sexually ambiguous phenotype?
What will be an ideal response?
What is the correct order for the following events in excision repair of DNA? (1) DNA polymerase I adds correct nucleotides by 5?-to-3? replication; (2) damaged nucleotides are recognized; (3) DNA ligase seals the new strand to existing DNA; (4) part of a single strand is excised.
a. 1, 2, 3, 4 b. 2, 1, 3, 4 c. 2, 4, 1, 3 d. 3, 4, 2, 1 e. 4, 2, 3, 1