Your job is to classify a newly discovered animal species. Your initial studies reveal that your specimen lacks tissues and organs and has no head, body symmetry, body cavity, or segmentation. To what phylum does this animal belong?
A) Cnidaria
B) Mollusca
C) Annelida
D) Platyhelminthes
E) Porifera
E
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Of the following enzymes associated with the TCA cycle, which of the following enzymes is not under allosteric regulation?
A) isocitrate dehydrogenase B) ?-ketoglutarate dehydrogenase C) malate dehydrogenase D) fumarate hydratase E) pyruvate dehydrogenase complex
The center for control of motor skills and posture is the ____
a. cerebrum b. medulla oblongata c. cerebellum d. brain stem e. hypothalamus
Hemophilia is an X-linked recessive allele causing a blood disorder. What are the chances that a daughter of a normal man and a woman, who is heterozygous for the disease, will have hemophilia?
A) 0% B) 25% C) 75% D) 100%
A cat has a total of 38 chromosomes in its body cells. How many in its gametes?
A. 17 B. 19 C. 15 D. 10