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From The School of Biomedical Sciences Wiki. Complementary base pairing is the phenomenon where in DNA guanine always hydrogen bonds to cytosine and adenine always binds to thymine. The bond between guanine and cytosine shares three hydrogen bonds compared to the A-T bond which always shares two hydrogen bonds.
Microevolution refers to changes that occur within a single species or group or organisms. Microevolution, as opposed to macroevolution, occurs in a short period of time. In microevolution, the ancestor and the descendant obviously belong to the same type. For example, certain pests have evolved in such a way that they become immune to pesticides; the same thing has happened to certain weeds and herbicides. Hope this helps.
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the baby is not theirs because the father has a blood type of OB so he can give an O or a B and the mother has a blood type AB so she can give either an A or a B so their child could either be of blood type A or B or AB but not O
Answer: a star expels most of its outer material until only the hot core remains, which then settles down to become a young a white dwarf
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