The control of the cell cycle involves all of the following EXCEPT
A. Proteins cyclins and cyclin-dependent kinases are responsible for advancing a cell through the phases.
B. G2 checkpoint which checks for DNA damage, determines if all of the DNA is replicated.
C. Metaphase checkpoint which determines if all chromosomes are attached to the spindle apparatus.
D. Cytokinesis which involves the formation of cleavage furrow to separate the cells.
E. The restriction point determines if conditions are favorable for cell division.
D. Cytokinesis which involves the formation of cleavage furrow to separate the cells.
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Women with breast cancers that are estrogen-sensitive ____
a. become ill when taking prescription estrogen b. can exacerbate their symptoms with only a small increase in estrogen levels c. are in danger of faster growth of cancer cells in the presence of estrogen d. will often experience cancer remission with increased uptake of estrogen e. do not produce their own estrogen and must obtain it through diet or supplements
What is the strongest evidence for the idea that present-day eukaryotic aerobes are the descendants of the successful
symbiotic association of anaerobes and aerobes? a. Mitochondria can produce ATP. b. A mitochondrion can survive indefinitely when removed from a eukaryotic cell. c. A mitochondrion has its own set of DNA molecules. d. Fossilized mitochondria are older than the oldest fossilized eukaryotes. e. All eukaryotic cells have mitochondria.
Resting zone
What will be an ideal response?
When the oocyte is released from the ovary, it is transported to the uterus through the
A) fimbriae. B) flagella. C) oviduct. D) ductus deferens. E) endometrium.