Radish flowers may be red, purple, or white. The part of the radish we eat may be oval or long. A cross between a red-flowered long radish plant and a white-flowered oval radish plant yields all-purple long radish offspring
Then the F1 are crossed. In the resulting F2 generation, which of the following phenotypic ratios would be expected?
A) 9:3:3:1
B) 9:4:3
C) 1:1:1:1
D) 1:1:1:1:1:1
E) 6:3:3:2:1:1
Answer: E
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Dr. Stanley Prusiner concluded that the infective agent of CJD was not a(n) virus because it was not sensitive to
radiation which mutates nucleic acids. ____________________ Indicate whether the statement is true or false.
The condition that is characterized by the wearing-down of joints due to insufficient cartilage repair is called:a
osteitis. b. osteoporosis. c. osteopenia. d. osteoarthritis. e. osteon disease.
It is common for a normal, healthy individual to carry potentially pathogenic organisms in their upper respiratory tract
Indicate whether the statement is true or false
Because of Chargaffs rules if the order of the bases on one strand of DNA is known the order of bases on the other strand can be predicted
a. true b. false