Which genotypic ratio indicates a recessive lethal allele when two heterozygotes are mated?
A) 2:1
B) 3:1
C) 1:2:1
D) 1:1
E) 4:1
A) 2:1
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Cells actively secreting enzymes would likely carry out more ____ than other cells
a. exocytosis b. osmosis c. endocytosis d. conjugation e. fractionation
An 85-year-old female in a long-term care facility is prescribed verapamil for blood pressure management twice daily. The medication is classified as a calcium channel blocker. As the RN, you are familiar with the action of calcium channel blockers. By inhibiting the passage of calcium through ion channels, the drug targets which of the following processes?
A. diffusion B. active transport C. passive transport D. osmosis
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What will be an ideal response?
Which of the following correctly describes the shape of a DNA molecule?
A. Long String B. Single Stranded C. Ladder D. Double Helix