Answer:
Genetic drift is simply a change in the frequency of alleles in a population.
Like shown in the comic A, there are different genes present on chromosomes. All of these genes are made up of a pair of alleles. These alleles determine the genotype and the resulting phenotype of an organism.
If none of the alleles is favored by the environment, then a population will have equal no.of all the variant forms of a trait. Like shown in the comic B, both the green and the grey animals are favored equally.
But if natural selection occurs and one form of the allele variant is favored, then a genetic drift will occur. Most of the organisms will have the alleles which are favored by the environment. Like shown in Comic C, where the grey alleles are favored more than the green alleles.
Sleep reactivates recent experiences stored in the hippocampus and shifts them for permanent storage in the cortex. The hioppocampus is the portion of the brain that is responsible of storing of the long-term memory which would include the experiences and the pas t knowledge. It is located in the medial temporal lobe of the brain. As one sleeps, the brain would sort of replay everything that happened that day. At this time, the hippocampus and the neocortex would communicate with each other to make and store those memories. From researches, it was said that the activity of the hippocampus would increase when an individual is in a slow-wave sleep.
<span>The human tympanic membrane or eardrum is a thin, concave membrane stretched across the inner end of the external auditory canal much like the skin covering the top of a drum. The eardrum marks the border between the outer ear and middle ear. ... The middle ear transmits sound from the outer ear to the inner ear.
Answer would be </span>
<span> tympanic membrane or eardrum</span>
I think the answer is B, that most amino acids are encoded by more than one codon.
