Achange in one or a few nucleotides that occur at a single point in the dna sequence

Why was the sample heated in step 5? describe the chemical principles involved in the reasoning behind this step?

Match the type of adaptation to the correct example, structural adaptation functional adaptation behavioral adaptation example type of adaptation elephants live in herds to protect their young leaves of a rain forest plant species have a pointed tip that enables rainwater to drain off easily. camels have nostrils that they can close snakes produce venom to kill prey and defend themselves. earthworms coil when touched, as part of a defense mechanism. human skin darkens with increased exposure to sunlight.

Asap what occurs after cytokinesis is completed at the end of meiosis 1?