If not parents had a recessive type O allele, they would have a 1/4 or 25% chance of having a child with type O blood
We will all die because we need oxygen that the plants give is
Answer:
DNA helicase separates the two strands of DNA at a replication fork.
Explanation:
To allow DNA replication, two DNA strands should be separated to serve as a template strand. DNA helicases are the enzymes that separate the two parental DNA strands in an energy-dependent way. DNA helicases move along the DNA and separate the two strands by breaking the hydrogen bonds between the complementary base pairs of two DNA strands. The energy released from ATP hydrolysis is used to break the hydrogen bonds.
The correct answer is A. R and S
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Polar molecule has diff charges positive nd negative but the non polar molecule does not it has an equal charge.
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A non-polar molecule doesn't have anything in the molecule that cause it to be attracted to water or other polar molecules making it hydrophobic, like oil in water.
A polar molecule has groups on it that give it a charge and cause it to be attracted to other polar molecules. Like alcohol in water. Alcohol is polar due to the -OH group attached to it causing it to miscible in water.