Answer:
C. Nucleic Acids arranged in a double helix.
Explanation:
The structure of DNA is best described as a double helix. DNA has a sugar phosphate back and nucleotides connected by covalent bonds. Together, it looks like a twisted ladder which is also known the double helix.
I do I just need to answer a question
The kidneys make two main hormones, vitamin D and erythropoietin. Vitamin D is essential for a number of different functions in the body. Most of the vitamin D that is in the blood is inactive and it is modified by the kidney and other tissues to activate it.
Answer:
CGC AUA CCG - RNA
CGC ATA CCG - DNA
Explanation:
Uracyl (U) is present in RNA instead of Thymine (T)
Also opposite RNA/DNA molecules pair with each other.
Adenine pairs with Uracyl (RNA)/Thymine (DNA)
Cytosine pairs with Guanine (both RNA & DNA)
<em> DNA replication needs to occur because existing cells divide to produce new cells.Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions!</em>
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