Answer:
DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating.
The four types of nitrogen bases found in nucleotides are: adenine (A), thymine (T), guanine (G) and cytosine (C). The order, or sequence, of these bases determines what biological instructions are contained in a strand of DNA. For example, the sequence ATCGTT might instruct for blue eyes, while ATCGCT might instruct for brown. The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes.
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Explanation:
Answer:
artificial made
Explanation:
because it is greated by man not God
The answer you are looking for is right here, Gogli Apparatus is the answer
Answer:
The correct answer is option d. "Protein movement is limited by the presence of a diffusion barrier".
Explanation:
There are transportation mechanisms that allow to take up nutrients to the apical surface of the epithelial cells. The transportation process is best describes as protein movement limited by the presence of a diffusion barrier. There are structures known as tight junctions, located just below the apical surface . These tight junctions acts as diffusion barriers, separating the extracellular fluids surrounding the apical and basolateral membranes.
<span>Since starch is a dissaccharide and is used in many cellular activities
Carbohydrates get
stored in the form of long polymers of glucose molecules or as glycogen
starch. They provide energy to the animals for performing their daily
duties. Carbohydrates are generally considered the fuel for all
organisms, and without this most animals would become sloth and would be
unable to perform the regular jobs. Carbohydrates are actually very
easy to metabolise and hence generate quick energy.<span> </span></span>
