The tongue length of an animal is controlled by two alternative alleles at a single locus, L (long) and l (short). If an individual has parents that are both homozygous dominant, it will be
A) homozygous dominant with a long tongue.
B) heterozygous with a long tongue.
C) heterozygous with a short tongue.
D) homozygous recessive with a long tongue.
A
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Based on the figure above, which of these experimental treatments would increase the rate of sucrose transport into the cell?
A) decreasing extracellular sucrose concentration B) decreasing extracellular pH C) decreasing cytoplasmic pH D) adding an inhibitor that blocks the regeneration of ATP E) adding a substance that makes the membrane more permeable to hydrogen ions
A patient with a viral infection would typically demonstrate a decline in the number of agranulocytic leukocytes in circulating blood with an accompanying increase in the number of granulocytic white blood cells, such as basophils and eosinophils.
Answer the following statement true (T) or false (F)
The aspect of human evolution in which the genes microcephalin and ASPM have been implicated is the
A. evolution of an opposable thumb. B. evolution of our large frontal cortex. C. evolution of bipedal locomotion (walking upright). D. the evolution of mother-infant bonding. E. evolution of language.
Which of the following techniques quantifies the amount of protein present in a gel lane by measuring how much light is blocked from passing through the gel by the presence of a band of protein?
A) hybridization B) electrophoretic mobility C) densitometry D) restriction fragment analysis E) peptide fingerprint analysis