To create a multicellular eukaryotic transgenic organism, a researcher
A) introduces foreign DNA into a fertilized ovum.
B) injects a gene of interest into a somatic cell.
C) injects a gene of interest into several somatic cells.
D) introduces foreign DNA into somatic cells in culture and transplants them.
A) introduces foreign DNA into a fertilized ovum.
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Enveloped viruses
A. just require a stamp. B. have an outer lipid bilayer membrane containing various proteins. C. are surrounded by an additional layer of carbohydrate. D. envelope a cell.
In which of the following ways does the fly
kill a fire ant?
a. A female fly lays an egg in the ant's soft tissues, and in the process of development, the resulting larvae kills the ant. b. A fly (male or female) injects a poisonous substance in the ant which results in paralyzing its muscles. c. A fly (male or female) injects a substance that sterilizes the ant. d. A fly (male or female) causes the ant's death by depriving it from its necessary resources and habitat. e. A fly (male or female) injects a substance that sterilizes the ant and paralyzes its muscles
What is meant by the statement "science is measurement"?
What will be an ideal response?
Cells with a relatively simple cell morphology that do not have a true membrane-delimited nucleus are called ________.
A. urkaryotes B. prokaryotes C. nokaryotes D. eukaryotes