Which of the following is true? a. introduction of a gene construct expressing telomerase into melanoma cells causes them to differentiate b. telomeres shorten by one hexanucleotide repeat each generation c. senescence is observed in vivo in precancerous lesions. d. dicentric chromosomes and anaphase bridges are hallmarks of senescent cells e. compared to primary cells, established cell lines typically have increased population doublings and increased p15 expression.
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Biology, 21.06.2019 16:40
Sand spinifex grass is adapted to growing on sand dunes. it is a rapidly spreading plant and the creeping runners produce new root systems. which of these best explains the benefits of these features? a. it limits water loss through the leaves. b. it provides support by anchoring the plant. c. it protects the plant from predators. d. it allows the plant to tolerate salt. reset submit
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Biology, 22.06.2019 11:00
What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.
Answers: 3
Biology, 22.06.2019 20:30
¿cómo demostraron los experimentos de griffith que un factor hereditario estaba involucrado en la transformación bacteriana?
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Biology, 23.06.2019 00:30
You do things keep your body in balance everyday what things do you try to keep balanced in your everyday life
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Which of the following is true? a. introduction of a gene construct expressing telomerase into mela...
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