Which of the following best describes the difference between dominant and recessive alleles? A. Dominant alleles are weaker than recessive alleles.

B. Recessive alleles are always more common in a population than dominant alleles.

C. The trait of a dominant allele always shows up when the allele is present, while the trait of a recessive allele is hidden whenever the dominant allele is present.

D. The trait of a recessive allele always shows up when the allele is present, while the trait of a dominant allele is hidden whenever the recessive allele is present.

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

The dna in a cell’s nucleus encodes proteins that are eventually targeted to every membrane and compartment in the cell, as well as proteins that are targeted for secretion from the cell. for example, consider these two proteins: phosphofructokinase (pfk) is an enzyme that functions in the cytoplasm during glycolysis. insulin, a protein that regulates blood sugar levels, is secreted from specialized pancreatic cells. assume that you can track the cellular locations of these two proteins from the time that translation is complete until the proteins reach their final destinations.for each protein, identify its targeting pathway: the sequence of cellular locations in which the protein is found from when translation is complete until it reaches its final (functional) destination. (note that if an organelle is listed in a pathway, the location implied is inside the organelle, not in the membrane that surrounds the organelle.)

During convection, less dense fluid rises and denser fluid sinks.