Following are four processes common to most cloning experiments:
transforming bacteria
plating bacteria on selective medium
cutting DNA with restriction endonucleases
ligating DNA fragments
Place these components in the order in which
they would most likely occur during a cloning experiment.
cutting DNA with restriction endonucleases, ligating DNA fragments, transforming bacteria, plating bacteria on selective medium
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When a eukaryotic cell is not undergoing mitosis, the DNA and its associated proteins appear as a visible, thread-like mass called ________.
A. the nucleolus B. nucleoplasm C. chromatin D. the nucleosome E. the nuclear envelope
In tomatoes, red (R) is dominant to yellow (r), tall (D) is dominant to dwarf (d), and smooth (H) is
dominant to peach or hairy (h). (a) How many different genotypes are there in relationship to these three characteristics? (b) How many different phenotypes are there in relationship to these three characteristics? (c) How many different homozygous pure-breeding forms can be produced? What will be an ideal response?
CAM plants
A) occur mostly in rainforests. B) fix carbon dioxide during the night. C) fix carbon dioxide in bundle sheath cells. D) lack stomata.
Short hair (L) is dominant to long hair (l). IS a short-haired animal of unknown genotype is crossed with a long-haired animal and they produce one long-haired and one short-haired offspring, the results would indicate that
a) the short-haired animal was homozygous. b) the long-haired animal was heterozygous. c) the short-haired animal was heterozygous. d) both the long-haired and short-haired animals were heterozygous.