<span>Tight junctions, at the site of a tight junction, cells are held tightly against each other by many individual groups of tight junction proteins called claudins, each of which interacts with a partner group on the opposite cell membrane. For example, the tight junctions between the epithelial cells lining your bladder prevent urine from leaking out into the extracellular space.</span>
Answer:
D
Explanation:
Because it is formed to fly and most mammals can't fly
Answer:
A.)frameshift mutation
Explanation:
The ozone layer of the earth is designed to protect all life of the organisms from the harmful radiation of the sun, but due to the human activities, the shield of the layer have been damaged. With the reduction of the protection from this ozone layer against ultraviolet Ray's will lead to damage of plants and also result to high risk of cancer in organisms.
Ultraviolet light is usually absorbed by the DNA bases , through the double bond of thymine and cytosine . As a result of this energy is added to the bond and this give room to reaction with a neighboring base. Then covalent bond is formed with the neighboring base especially if it is
thymine or cytosine base.
Answer:
D.) HOCOOH
Explanation:
Structural formulas identify where the atoms/bonds within a molecule are located. Therefore, the atoms need to be listed in order of appearance (left to right). This makes the best answer D.) HOCOOH.
The answer is recombination or "crossing over" as some people call it! Hope this helps!