Receptor cells themselves become less responsive to an unchanging stimulus and the receptors no longer send signals to the brain. movements that you don't consciously notice. microsaccades saccadic movements keep eyes from adapting to what they see. what involves detection of physical stimuli<span> from </span>environment<span>
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The most likely explanation of as to why there is a high
proportion of winged individuals in a population of bean aphid was because
there is a presence of high population density or another reason is that there
is already a high population if before the aphids develop or has developed.
Answer:
The heat sensitive polymerase would be denatured resulting in formation of little or no PCR products.
Explanation:
PCR is a technique that forms multiple copies of a small DNA sample. For the purpose, the DNA sample is exposed to very high-temperature conditions (around 95 degrees C) to facilitate the denaturation of DNA helix. These high-temperature conditions denature enzymes such as heat-sensitive DNA polymerases. Therefore, no or very little DNA molecules will be formed by the end of the process as the denatured DNA polymerase would not be able to extend the primers.
To avoid these conditions, heat-tolerant Taq polymerase is used in PCR which can withstand the extremely high-temperature conditions of PCR.
B) Traits that are dominant mask traits that are recessive
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The correct answer is "is found only in Corynebacterium diphteriae cells that have been infected with lysogenic bacteriophage β".
An exotoxin is a bacterial toxin which is secreted by the toxin in its surrounding environment.
The diphtheria exotoxin is a toxin produced and secreted by some pathogenic bacteria of the species <em>Corynebacterium diphtheriae</em>. This exotoxin is only produced by bacteria who have been infected with lysogenic bacteriophage β (a specific type of virus which infects bacteria). The reason for this is that the virus encodes the gene responsible for producing the toxin.
