In garden peas, smooth seeds are dominant to wrinkled ones, and yellow pea color is dominant to green. In a dihybrid cross of SsYy x SsYy, what proportion of the offspring from this cross is expected to be both smooth and yellow?
1.9/16
2.3/16
3.1/16
4.none
1
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The process by which white blood cells ingest and kill bacteria is called
A) exocytosis. B) transcription. C) phagocytosis. D) translation.
Most cases of Salmonella gastroenteritis have a(n)
A. water source. B. human source. C. plant source. D. animal source.
Red blood cells contain 2% salt. What will happen when the cell is placed in a 10% salt solution?
a. The cell will burst. b. The cell will shrink. c. The cell will remain unchanged, but salt will diffuse out of the cell. d. The cell will remain unchanged, but salt will diffuse into the cell. e. The cell will remain unchanged, but water will diffuse out of the cell.
One result of Costa Rica's commitment to conservation is that
A) destructive practices such as massive logging and large-scale single-crop agriculture have been nearly eliminated. B) both protected park areas and the buffer zones around them have suffered only negligible deforestation. C) ecotourism generates many jobs and brings in a significant fraction of the country's revenue. D) about 95% of the country's land is protected in some way.