Which of the following is NOT used in gene therapy to transfer cloned DNA into human cells?
A. Retroviruses
B. Fusion of cells with DNA-containing vesicles
C. Microinjection
D. Transformation
E. Chemical means to get the DNA through the cell membrane
D
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A karyotype of chromosomes from a cancer cell would be most likely to exhibit
A) polyploidy. B) a single missing chromosome. C) a single extra chromosome. D) a normal set of chromosomes because only point mutations have occurred.
The skeleton nicknamed Lucy is a representative of which hominin?
a. Homo habilis b. Homo erectus c. Ardipithecus ramidus d. Australopithecus africanus e. Australopithecus afarensis
What is the probability that each of the following pairs of parents will produce the indicated offspring?
A) AABBCC × aabbcc ? AaBbCc B) AABbCc × AaBbCc ? AAbbCC C) AaBbCc × AaBbCc ? AaBbCc D) aaBbCC × AABbcc ? AaBbCc
While studying a bacterial strain, a scientist notes a short DNA sequence between inverted repeats is present in both the chromosome and a plasmid within the cell. This sequence is most likely a(n) (phage/transposon/F plasmid)
What will be an ideal response?