Biology, 16.10.2019 02:40 katiebotts18
Aheart cell was taken from a rat and placed in flask a, which contained a nutrient-rich culture medium. a kidney cell was taken from the same rat and placed in flask b, which contained the same nutrient-rich culture medium. twenty-four hours later both flasks were dense with cells, indicating cellular division had occurred. the flasks were analyzed to determine what types of cells were present. which of the following best explains why all the cells in flask a were heart cells and all the cells in flask b were kidney cells? information dictating cell type is passed from a parent cell to offspring during mitosis.
no crossing-over or mutations occurred during cell division.
the parent cell secreted enzymatic signals that stimulated the offspring to develop into the same cell type.
the parent cells must have been homozygous for genes encoding cell type
Answers: 2
Biology, 21.06.2019 19:00, TH3L0N3W0LF
Consider the diagram below, which represents components of the biosphere. what do the two arrows in the diagram most likely represent? a. radiation b. photosynthesis c. cellular respiration d. energy conversions will give to anyone who answers quickly
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Biology, 23.06.2019 00:00, zahnjoey4661
Which technology do environmental scientists use to track the movements or polar bears and other vulnerable populations? a) geographic information system(gis) b)environmental dna(edna) surveillance c) global positioning system(gps) d) unmanned aerial system (uas)
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Aheart cell was taken from a rat and placed in flask a, which contained a nutrient-rich culture medi...
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