Answer: D - all of the above
Explanation:
Cytosine (C) is paired with Guanine (G) according to the base pair rule just as Adenine (A) is paired with Thymine (T).
The sugar in DNA is deoxyribose which is a modified form of ribose(also sugar). It simply is a ribose sugar which has lost an oxygen atom hence “deoxyribose”. Deoxyribose is one of the components that make up the DNA backbone.
Hydrogen bonds exist between bases. The importance of these hydrogen bonds is to hold the complementary strands of DNA together.
<span>Consider a female firefly that produces pheromones, which in turn cause males of the same species to fly toward her. in this scenario, the male would be the receiver and the female the sender.</span>
The sequence of amino acids in a protein is determined by DNA. In a protein that is present in all species, the amino acid sequence will be different. Once a protein has been chosen, the amino acid sequence of that protein in different species are compared. More similarities, or fewer differences, indicate that two species are closely related. (sorry if im wrong!)
The factor that is responsible for the phenomenon of the blood group B being almost absent in Native Americans whose ancestors arrived in very small numbers about 10,000 years ago would be called the 'founder effect'.
I believe the answer to your question is <span>Glial cells</span>
