For example, first, a so-called initiator protein unwinds a short stretch of the DNA double helix. Then, a protein known as helicase attaches to and breaks apart the hydrogen bonds between the bases on the DNA strands, thereby pulling apart the two strands.
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Answer:
A genotype refers to the genetic characteristics of an organism. A phenotype refers to the physical characteristics. For example, having blue eyes is a phenotype; lacking the gene for brown eyes is a genotype.
Answer:
19.00
Explanation:
the answer is d because in most periodic table the atomic mass is below
The answer is B, humans are destroying the wetlands.
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<span>Answer: C) nearly 0% hydrogen </span>
Hydrogen plays a very significant part in the existence of stars around nebulae. A vast amount of hydrogen is needed for stars to be born. Hydrogen heats up and ignites due to a chain reaction from the collision of atoms but since there is no gravity acting upon the nebulae, it takes millions of years for the stars to exist.
<span><span>We can assume then that when the stars are born they contain 100% hydrogen. As they age, hydrogen is depleted. The oldest the star the least hydrogen it has. So the answer is </span><span>C) nearly 0% hydrogen </span></span>