Which of the following is not true of vectors?
A. They contain a gene for drug resistance.
B. An origin of replication (ORI) is present.
C. They are easy to manipulate.
D. They can detect RNA in cells.
E. They must accept DNA of desired size.
Answer: D
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Which of the following is not true with regard to compacting nucleic acids?
A. Some viral coat proteins are RNA-binding proteins that compact the RNA genome of the virus. B. There are enzymes that introduce and maintain coiling of double-stranded DNA molecules. C. There are DNA-binding proteins that maintain structural organization in eukaryotes. D. There are DNA-binding proteins that maintain structural organization in bacteria. E. Single-stranded RNA viruses compact their genomes by packaging complementary RNA.
A male is tested for cellular abnormalities. The technician notes that there are two Barr bodies present within each of the patient's cells. This indicates that his chromosome complement is most likely
A) XY. B) XO. C) XXX. D) XXY. E) XXXY.
Sensory-Specific Satiety Lab Tests
What will be an ideal response?
Which type of receptor would you expect to be most abundant in the antennae of a moth?
A) thermoreceptors B) mechanoreceptors C) chemoreceptors D) electroreceptors