How are restriction and DNA ligase enzymes used to insert a foreign gene into a plasmid?
What will be an ideal response?
Plasmids with the matching restriction sites are cut open with restriction enzymes, foreign DNA fragments fill the gap, and DNA ligase seals its end to the cut ends of the plasmid.
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Another name for a chromosome is a ________, because it contains alleles that are often inherited together.
A) linkage group B) crossing over group C) genetic recombinant D) bivalent
Estrogens from birth control pills
a. are excreted in the urine. b. are removed during standard wastewater treatment. c. can cause female fish to develop male traits. d. have different effects in fish than those of industrial estrogen-mimicking pollutants. e. do none of these.
Which subatomic particle contains the neutral charge?
a. Electron b. Proton c. Both the proton and neutron d. Neutron e. Both the neutron and electron
Carbon, hydrogen, and oxygen are _____ for plants
a. macronutrients b. micronutrients c. trace elements d. required elements e. both macronutrients and required elements