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DNA replication involves many steps and enzymes. As DNA is a double stranded helix it must be untwisted so that it can be copied. Each strand from the parental DN...
Some chromosomes not linked to sexual function are located on the sex chromosomes (X and Y). The Y chromosome is significantly shorter (50 million bp) than the X chromosome (153 million bp), thus the Y ch...
Your immediate logical answer is that if they eat before the test then that will confuse the blood glucose levels. This is correct, but you just need to adjust your answer so it makes sense and relate it ...
Prokaryotic cells (bacteria) are exclusively unicellular whereas eukaryotic cells can display attributes of both multicellular and unicellular of a bigger and more complex structure. Eukaryotes are disti...
Action potential reaches pre-synaptic knob.This stimulates voltage gated Ca2+ channels to open and Ca2+ to diffuse in.This causes vesicles containing ACh to bind to the pre-synaptic membrane and release A...
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