List the stages of interphase and the events that occur during each of these stages.
What will be an ideal response?
G1 stage: The cell grows and returns to normal size and resumes its functions. The cell organelles double and the cell accumulates the materials needed for DNA synthesis.
S stage: The DNA is copied (replicated/duplicated)
G2 stage: The cell synthesizes the proteins needed for cell division.
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Which pairs of organ systems work together to acquire energy?
A. circulatory and respiratory B. nervous and endocrine C. skeletal and muscular D. urinary and integumentary E. reproductive and digestive
Nonfunctional copies of normal genes, which lack both introns and promoters, and are important in estimating evolutionary ages of phylogenetic relationships, are ________
A) transgenes B) retrotransposons C) processed retrogenes D) processed pseudogenes E) duplicated pseudogenes
How do proteins contribute to the function of an electron transport chain?
A. They become oxidized and reduced. B. They undergo osmosis. C. They are involved in the hydrolysis of electrons. D. They consume electrons.
Which of these is present in plant, but not animal, cells?
a) Golgi apparatus b) nucleus c) chloroplasts d) cell membrane