you want to use crispr/cas9 to model a deletion mutation commonly found in cancer cells. suppose you design two sgrnas to this region of the genome. if cas9 cuts dna at 2 loci, what is the approximate size of the dna fragment expected to be deleted?

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explanation:

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because the light is a great source of energy for the plants to survive. (i hope this )

the answer would be knowledge about cars!

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.