A) with more research, scientists will be able to "turn on" genes in pluripotent adult stem cells.
B) heavier regulations will force the issue by completely stopping the use of embryonic stem cells.
C) researchers will run out of available human embryos that are currently available for research.
D) it will be simpler to extract more adult stem cells as more people learn about the option to donate.
Correct Answer
verified
Multiple Choice
A) embryonic stem cell transplantation.
B) polymerase chain reaction.
C) short tandem repeats.
D) somatic cell nuclear transfer.
Correct Answer
verified
True/False
Correct Answer
verified
Multiple Choice
A) researchers have difficulty finding useful genes, from other species, to use.
B) only diseased cells can be targeted.
C) although suitable genes can be identified, there is no way to know the nucleotide sequences.
D) There are no technological limits, but rather ethical ones.
Correct Answer
verified
Multiple Choice
A) wide number of similar genes among other organisms.
B) nucleotide (nitrogen base) sequences.
C) None of these answer options are correct.
D) one or more gene locations, for genetic traits.
E) number of chromosomes in the organism.
Correct Answer
verified
Multiple Choice
A) All of these options are possible, but depend on the vector and the receiving cell's properties.
B) enclosing it in a membrane-bound liposome that fuses with the cell membrane.
C) placing it in an empty virus protein coat that might be engulfed by the cell.
D) electrifying the cell membrane to open a temporary hole among the phospholipids.
E) attaching it to a small bead, and shooting it into the cell with a gene gun.
Correct Answer
verified
Multiple Choice
A) the tandem repeat sequences are those that can be made into recombinant DNA.
B) they signal to researchers where there are genes that can be more easily cloned, or grown in stem cells.
C) None of the answer choices are correct.
D) a more efficient analytical focus is made on small portions of highly variable DNA sequences.
E) they serve as DNA probes, which indicate where disease-causing alleles are found.
Correct Answer
verified
True/False
Correct Answer
verified
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