Short index fingers (shorter than ring finger) are dominant in males and recessive in females, while
long index fingers (as long or longer than ring fingers) are dominant in females and recessive in males.
Give the F2 genotype and phenotype resulting from the cross of a male with long fingers with a female
with short fingers. What will be an ideal response?
F2: 3/4 males with short fingers, 1/4 males with long fingers; F2: 3/4 females with long fingers, 1/4
females with short fingers
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What is the advantage of enhanced biological phosphorus removal (EBPR) over chemical precipitation?
A) Chemical precipitation produces sludge containing arsenic. B) EBPR removes significantly more phosphorus than chemical precipitation. C) Significantly less sludge is produced by EBPR compared to chemical precipitation. D) EBPR is a more stable process.
Which of the following is true for a nerve cell at rest?
A. Channels allow for the movement of potassium out of the cell. B. Sodium ions are concentrated outside the cell. C. Channels allow for the movement of chloride into the cell. D. Channels allow for the movement of potassium out of the cell AND sodium ions are concentrated outside the cell.
Four of the five answers listed below possess electrons in the third orbital. The atomic number is at the
right of the element. Select the exception. a. sodium (11) b. magnesium (12) c. chlorine (17) d. nitrogen (7) e. sulfur (16)
Localized regions of plasma membranes that contain cholesterol and proteins involved in cell signaling are known as
A) gap junctions. B) arterial plaques. C) cadherin junctions. D) lipid rafts. E) plasmodesmata.