Leptin has its effect on the
a. small intestine.
b. stomach.
c. brain.
d. skeletal muscles.
e. liver.
C
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The proteome is all the proteins produced by an organism. The genome is the totality of all genes of an organism. If the proteome is much larger than the genome, which of the following statements would be accurate?
A) This finding lends support to the one-gene, one-enzyme hypothesis. B) The number of monomeric subunits found in proteins is fewer than the number of monomeric subunits found in genes. C) At least in some cases, a single gene must code for more than one protein. D) Noncoding DNA is important in determining the proteome.
Which one of the following is the organ of the inner ear that contains hair cells which convert fluid pressure waves to nerve impulses?
A. vestibular System B. semicircular canals C. organ of Corti D. statolith
What happens with blood flow at the arteriole end of a capillary?
a. Pressure forces some fluid out of the capillary into the interstitial fluid. b. Pressure forces some fluid into the capillary from the interstitial fluid. c. Osmotic pressure forces fluid out of the capillary into the interstitial fluid. d. There is no fluid movement in either direction. e. Osmotic pressure of the blood is lower than at the venule end.
In Drosophila, the allele red eyes (bw+) is dominant to the allele for brown eyes (bw). At another gene locus on the same chromosome, the allele for thin wing veins (hv+) is dominant to the allele for heavy wing veins (hv). Flies homozygous for bw and hv+ are crossed to flies homozygous for bw+ and hv to obtain doubly heterozygous F1 progeny.Given that these two gene loci are very closely linked, the phenotypic ratio in the F2 generation should be closest to
A. 1 brown eye: 1 red eye: 1 heavy wing veins: 1 thin wing veins B. 1 brown eye, thin wing veins: 2 red eye, thin wing veins: 1 red eye, heavy wing veins C. 3 red eye, thin wing veins: 1 brown eye, heavy wing veins D. 1 brown eye, heavy wing veins: 2 red eye, thin wing veins: 1 brown eye, thin wing veins