Which of the following microbes has been genetically engineered to contain a protein that helps protect crops from freezing?
A) Deinococcus radiodurans
B) Bacillus thuringiensis
C) Pseudomonas
D) Salmonella
E) Escherichia coli
C
You might also like to view...
Differentiate between exergonic and endergonic in terms of free-energy calculations
What will be an ideal response?
The graph here shows the results of Jacob and Monod's first experiments with betagalactosidase and lactose in E. coli. If beta-galactosidase were unstable in the absence of lactose (one of the hypotheses they tested), what results would you expect to see?
A. the results shown in the graph B. an increase in beta-galactosidase after lactose is removed C. a decrease in beta-galactosidase after lactose is removed D. an initially high level of beta-galactosidase at the beginning of the experiment, with a steady decline over time E. None of these choices are correct.
What is a typical characteristic of a quantitative trait?
A. No environmental influence on the trait B. Polygenic basis C. Discontinuous distribution of phenotypic trait. D. Usually the graph of trait versus frequency has two distinct peaks.
Which of the following viruses can cause cancer?
A. Rous sarcoma virus B. hepatits B C. papillomavirus D. Epstein-Barr virus E. All of the choices are correct.