Which of the following molecules is incorrectly matched with the number of carbon atoms it possesses?
A) citrate; 6
B) ?-ketoglutarate; 5
C) acetyl CoA; 2
D) malate; 5
E) isocitrate; 6
Answer: D
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Which of the following characteristics of the glmS riboswitch is also true of the TPP riboswitch?
A. The glmS riboswitch is a ribozyme. B. The structure of the riboswitch is the same, whether bound by ligand or not. C. The riboswitch lowers the rate of translation when bound to its metabolite ligand.
What are the genotypes of the married couple?
Polydactylism is a dominant trait that results in extra fingers and toes in humans. A polydactyl man marries a woman with 10 fingers and toes. They have a child that has a normal number of digits. The phenotype of the man's father is unknown, but his mother has a normal phenotype. A. woman Dd, man dd B. woman DD, man dd C. woman dd, man DD D. woman dd, man Dd E. woman DD, man Dd or dd
Which of the following is not an adaptation to bipedalism in early hominids?
a. curvature of the spine b. shorter pelvis c. alignment of the big toes with the rest of the toes d. decrease in the length of the legs relative to the arms e. moving the foramen magnum to the base of the skull
Which organism does not contain kidneys?
A. lizard B. hummingbird C. rabbit D. shark E. beetle