Identify the stage of cellular respiration where glucose is split into two molecules of pyruvic acid.
A. Calvin cycle
B. Electron transport chain
C. Citric acid cycle
D. Glycolysis
Answer: D
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a. ovules. b. seeds. c. pollen grains. d. megaspores. e. pollen sacs
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Indicate whether the statement is true or false
Crossing over is one of the most important events in meiosis because _________________.
A. it produces new combinations of alleles on chromosomes B. homologous chromosomes must be separated into different daughter cells C. the number of chromosomes allotted to each daughter cell must be halved D. homologous chromatids must be separated into different daughter cells E. the number of chromosomes allotted to each daughter cell must be split in fourths