Answer:
A) A single base pair change.
Explanation:
Point mutation is a change in a single base pair of a nucleotide. This comes as a results of mistakes made during DNA replication, induced by ultravoilet radiations, extreme heat and X-rays. There are three types of point or substitution mutations; change, deletion and insertion. The nucleotide bases are either mistakenly inserted, changed or deleted, thus changing the resulting protein or amino acid being coded for.
Since enzymes function as organic catalysts, a cell would not be able achieve homeostasis if the required enzymes were not present.
Answer:
Their similarity
Explanation:
Pharyngeal pouches are structures in vertebrates that develop in different parts of the body mainly in the face or neck. The similarity in their position and structural indicates a similarity . These structures provide evidence of evolution that the organisms evolved from the same ancestry.
Lost of sodium or hyponatremia is a condition that occurs when the concentration of sodium in the blood is low. The symptoms of hyponatremia tend to be neurologic so Leonard’s mother may complain of with headache, nausea and vomiting, lethargy, and confusion. If the sodium concentration drops quickly to critical levels, seizures and coma might also happen.
