) A sample of normal skin cells and tumorous skin cells were treated with a potential cancer-treatment drug. The drug was administered to both normal (healthy) and cancerous (tumor) cells. The appearance and certain traits for these cells were recorded after treatment with the drug. Select the statements that accurately describe how the drug is able to treat the cancer cells. Select ALL that apply. A) The drug prevents DNA replication in cancer cells only. B) The drug prevents cancer cells from transcribing genes. C) The drug prevents cyclin levels from increasing in cancer cells. D) The drug prevents cancer cells from entering prophase of mitosis. E) The drug prevents all cells from passing through the G2 checkpoint

videntify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

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