Answer:
False. There are 20 amino acids, but 64 possible codons.
Explanation:
Genetic information for the aminoacids assembly during the protein synthesis is stored in short sequences of three nucleotides named codons in the mRNA. Each of the codons represents one of the 20 amino acids used to build the protein. The total number of possible codons is 64, from which 61 codify amino acids -more than one codon codify for the same amino acid-. One of these amino acids is also the start point of protein synthesis. And the left three codons are stopping translation points.
The codons indicating the initiation or stop points during the translation process are:
• The start codon AUG is the most common sequence used by eukaryotic cells and places near the 5´extreme of the molecule. However, other codons might be used as well. Prokaryote cells might use the codons GUG or UUG.
• The end codons are UAA, UAG, UGA.
In the small intestine, muscular contractions squeeze chyme forward, and digestive secretions from the pancreas, gallbladder, and intestinal lining chemically break down the nutrients.
<h3>What is the role of the small intestine in food digestion?</h3>
The small intestine plays is a major organ in the process of digestion.
The small intestine is the part in which absorption of nutrients takes place.
The small intestine is the longest part of the digestive system.
Contraction of smooth muscles presents along the walls of the small intestine help to move food forward while the villi absorb the nutrients.
In conclusion, the small intestine is essential to digestion.
Learn more about the small intestine at: brainly.com/question/1204177
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Answer:
As John is testing the effect of temperature on the solubility of sugar in water. To test this, he will measure the amount of sugar dissolved at different temperature level.
Answer: here´s why
Explanation: Underneath the frozen upper layer, the water remains in its liquid form and does not freeze. Also, oxygen is trapped beneath the layer of ice. As a result, fish and other aquatic animals find it possible to live comfortably in the frozen lakes and ponds. If water is heated, its volume gradually decreases.
Answer:
i labelled the diagram . kindly check the attached file for detail
Explanation:
