A common herbicide that crops can be engineered to resist is ________

A) glyphosphate
B) ethanol
C) diesel
D) methane
E) ethane


A

Biology & Microbiology

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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.

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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

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In Drosophila and Lepidoptera, sex-chromosome mosaicism produces what type of sexually ambiguous phenotype?

What will be an ideal response?

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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

Biology & Microbiology