Answer:
A wide range of mental conditions that affects the mood of the person, behavior of the person and thinking of the person is called as mental disorder.
Example: Clinical depression: It is characterized by constantly a depressed mood or loss of interest in the activities causing an impairment in the daily life of the person.
The mental illness is also a type of mental disorder which is characterized by a sad mood and depressed mood for a longer period of time.
Example: Schizophrenia
Answer:
<h2>approximately 4%</h2>
Explanation:
Given, frequency of recessive allele (p )= 0.02
so, the frequency of dominant allele is (q )= 1-p
so q = 1-p
p = 0.02
q = 1- 0.02
q = 0.98
Once we know p and q, which factor of the Hardy-Weinberg equation. we can calculate percentage of individuals who are carriers of lethal recessive allele.
so
Result : percentage of individuals who are carriers of the lethal recessive allele is 4%.
Answer:
The correct answer is e. They tend to be similar to species from the closest mainland.
Explanation:
The species that live in the oceanic islands are more likely to be similar to the closest mainland because the chances of migration of species from the closest mainland are highest that from other areas that are very distant from the island.
The best example of this is seen in the Galapagos island which is 600 miles from South America. South America is nearest to Galapagos island than the African continent. Therefore the species found in the Galapagos island are more related to species found in lands of south America.
Therefore the correct answer is e. They tend to be similar to species from the closest mainland.
The cell will lose volume and shrivel, the exterior of the cell having a lower concentration of solutes than the interior.
Answer:
25nm
Explanation:
Microtubules are polymers of tubulin and they are part of the cytoskeleton. The roles of the microtubules are to maintain the shape and structure of the cell, intracellular transport, they are structural part of the cilia an flagella, they are involved in cell division etc.
Tubulin that is the basic unit of microtubules is composed of two globular proteins, alpha and beta tubulin. Alpha and beta subunits spontaneously form dimers which then assemble into oligomers, then in chains (protofilaments); that can form a variety of intermediate structures such as single and double rings or spirals. Protofilaments that associate side-by-side form sheets of protofilaments which then curle to form a tube or cylinder (closing of microtubule). Continued growth of microtubules occurs by the direct addition of more dimers on + side.
