Mature human sperm and ova are similar in that they _____
A) both have the same number of chromosomes
B) are approximately the same size
C) each have a flagellum that provides motility
D) are produced from puberty until death
E) are formed before birth
Answer: A
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In a chemical reaction, 1,3-bisphosphoglycerate + ADP yields 3-phosphoglycerate plus ATP. What is the delta G for this reaction?
A. Greater than zero. B. Less than zero. C. Equal to zero. D. Cannot be determined Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about free energy in enzymatic reactions? What other information is related to the question? Choose Answer Do you have all the information needed to answer the question? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
During which phase of mitosis are the nuclei reformed?
a. anaphase b. prophase c. cytokinesis d. telophase e. metaphase
Where does digestion of lipids in humans begin?
a. in the small intestine b. in the stomach c. in the pancreas d. in the mouth
A karyotype:
A) shows chromosomes as they appear before replication. B) can show the number of chromosomes in a cell. C) can reveal the location of a gene. D) can reveal the presence of cancerous genes.