Conjugation, transduction, and transformation are the three main mechanisms for gene transfer between bacteria. Compare these three mechanisms in terms of how DNA is transferred
What will be an ideal response?
ANSWER: Conjugation involves the transfer of DNA from one bacterium to another via direct contact
between the donor and recipient cells. In transduction, a virus packages some bacterial DNA
into its capsid; when the virus infects another bacterial cell, it injects bacterial DNA from the
first cell into the second cell. In transformation, bacteria take up DNA pieces that are released
as other cells disintegrate.
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A/an ________ allows visual inspection of the ear canal and eardrum.
A) Tympanogram B) Tympanometer C) Otoscope D) Audiometer
Optimal foraging theory predicts that animals will select
A. food items that maximize their net energy intake per unit of foraging time. B. the most nutritious foods. C. the best times to forage for the most nutritious foods. D. whatever foods are available to avoid traveling too far from their home range.
Mangrove forests predominantly occur in temperate regions
Indicate whether the statement is true or false
Symptoms of phenylketonuria (PKU) may be minimized or suppressed by a diet low in
a. serine. b. glycine. c. phenylalanine. d. proline. e. glutamic acid.