Salmonella are
What will be an ideal response?
Motile.
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This region exhibits 90% interference. How many double crossovers would be recovered in a three-point cross involving b, c, and sp out of 1000 progeny?
In Drosophila, the genes b, c, and sp are linked and arranged as shown below: b——30 m.u.——c——20 m.u.——sp A) 3 B) 6 C) 54 D) 60 E) 600
One strategy moths have for evading bats is
a. the ability to become invisible to the bat's echolocation signals. b. straight-line flight patterns. c. a periodic closed-wing free-fall before resuming an erratic flight pattern. d. an erratic flight pattern, but no instances of free-fall. e. flying primarily in the daylight hours.
Transmission genetics studies the pattern of ____________________ as traits are passed from generation to
generation. Fill in the blank(s) with the appropriate word(s).
Which phylum includes members that have, at some point during their development, a hollow dorsal nerve cord?
a. Hemichordata b. Arthropoda c. Cnidaria d. Chordata