<span>For the above question,it is an example of negative feedback.Cholesterol with high content is dangerous to our body which can cause heart attack and stroke.Mainly cholesterol causes due to poor diet and consuming high fat content foods.High cholesterol will also cause blood problems like blood flow will be harder to pass through arteries.</span>
Answer:
Crossing over
Explanation:
During prophase I of meiosis, homologous chromosomes pair to form bivalents. The chromatids of bivalents may form intimate contact points called chiasmata. At the chiasmata breakage may occur and exchange of chromatids segments between non sister chromatids may take place. This is crossing over ad results in new gene combinations causing variations.
Answer:
i). Dominant Allele.
ii). Recessive Allele
Explanation:
A dominant allele completely dictates the appearance or phenotype of heterozygotes. One allele is said to be dominant over another if a heterozygous individual bearing the allele has the same appearance as an individual who is homozygous for it.
A recessive allele is one who phenotypic expression is completely masked in heterozygotes by the presence of a dominant allele.
Psychophiles are bacteria can grow and survive in really low temperatures. These organism are adapted to freezing temperatures by producing antifreeze proteins that protect the organisms from vetrification and dessication. Examples of psychophilic bacteria that can contaminate food include Aeromonas spp and Yersinia spp