Where does the process of translation of nuclear protein-coding genes in eukaryotic cells occur?
a. in the nucleolus
b. in the nucleus
c. in the Golgi apparatus
d. in the cytoplasm
Answer: d. in the cytoplasm
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To have a hormone receptor system that is responsive to changes in hormone concentration, it is useful if the concentration of the hormone is
A) always more than 10 times the Kd. B) never more than 10 times the Kd. C) far below the Kd before the stimulation of hormone secretion. D) far above the Kd before the stimulation of hormone secretion. E) always constant.
A genus of primarily wind-pollinated plants includes one unusual species that has evolved to be pollinated by insects. Several morphological changes have accompanied this adaptation. The ______________ are more colorful, there is a nectary at the base of the ______________, the ________________ are shorter and produce sticky pollen, and the __________________ are stickier for enhanced pollen capture.
A. petals, stamens, sepals, carpels B. petals, sepals, stamens, carpels C. stamens, carpels, petals, sepals D. petals, sepals, carpels, stamens
Where do correlation, association, and learning occur in the brain?
A. cerebellum B. corpus callosum C. medulla D. cerebrum E. pons
In rats, the P gene allele for pigmentation (P) is dominant to the allele for albinism (p). The B gene allele for black pigmentation (B) is dominant to the allele for cream pigmentation (b). The pp homozygous recessive genotype is epistatic to any allele combination at gene B. Predict the genotypes and phenotypes of the F1 progeny of a cross between a pure-breeding black rat and an albino that is also homozygous for cream.
A) PP BB, black B) Pp Bb, black C) Pp Bb, albino D) pp Bb, albino