Consider the appearance of the chromosomes and cell structures in the microscope images containing cells in metaphase. Describe two visible differences between the appearance of metaphase in onion root tip cells and whitefish blastula cells. 5. Consider the visible appearance of each cell you sorted into distinct mitotic phases. Because mitosis is a continuous process, many cells are photographed as they transition between the "phases." Did you encounter any cells that appeared to be in transition between phases? If so, describe the physical appearance of the cell and the identify the transition in progress
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Biology, 22.06.2019 05:40
Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.
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Biology, 22.06.2019 12:00
Which are evidence of seafloor spreading? check all that apply. molten material magnetic stripes continent material drilled core samples ocean water samples
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Biology, 22.06.2019 13:20
Choose the incorrect statement (a) the motor end plate membrane is only capable of generating graded potentials, but it is contiguous with the skeletal muscle sarcolemma, which can generate action potentials. (b) propagation of an action potential through the t-tubules into the sarcoplasmic reticulum triggers the release of ca++ into the cytoplasm of a skeletal muscle fiber. (c) the generation of suprathreshold endplate potentials in multiple muscle fibers could be due to the increased frequency of action potential generation at the axon hillock of a single motor neuron. (d) a greater amount of ach would be found in the presynaptic vesicles of a motor unit that fired several action potentials after exposure to botulinum toxin, than in a motor unit that fired several action potentials after exposure to the venom of the krait snake (which contains α-bungarotoxin).
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Biology, 22.06.2019 15:30
The big bang theory suggest that the universe is about - 300 million years old - 4.6 billion years old - 30 billion years old - 13 billion years old
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Consider the appearance of the chromosomes and cell structures in the microscope images containing c...
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