The sub-atomic particle with a positive charge is _____
A. a neutron
B. an isotope
C. an electron
D. a proton
E. an ion
D
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Predict what would happen to the volume of the urine if the descending portion of the loop of Henle ceased to function.
A. The volume of the urine would not change. B. The volume of the urine would increase. C. The volume of the urine would decrease. D. The salt concentration of the urine would remain constant.
In a population in Hardy-Weinberg equilibrium, 75 percent of the individuals have a dominant allele for a particular gene (p=0.75) and 25 percent have a recessive allele (q=0.25). The proportion of homozygous recessive individuals in the F1 generation will be
A) 2.5%. B) 6.25%. C) 18.75%. D) 0%.
In garden peas, one pair of alleles controls the height
of the plant, and a second pair of alleles controls flower color. The allele for tall (D) is dominant to the allele for dwarf (d), and the allele for purple (P) is dominant to the allele for white (p). A tall plant with purple flowers crossed with a dwarf plant with white flowers produces 1/4 tall purple, 1/4 tall white, 1/4 dwarf purple, and 1/4 dwarf white. What is the genotype of the parents? What will be an ideal response?
Ribosomes are a type of (apoenzyme/enzyme/ribozyme).
Fill in the blank(s) with the appropriate word(s).