They can be maintained in a gene pool if they are expressed before
<span>reproductive age.</span>
For example:
Sickle cell anemia is caused by an abnormal hemoglobin in red blood cells. hemoglobin is the red pigment found in red blood cells for carrying oxygen.The abnormality arises from a genetic mutation in the DNA gene that codes for the beta chain of the protein called globin of which hemoglobin is made of.In the beta chain, the sixth amino acid called glutamine is replaced by another one called valine.This one change in the amino acids cause the hemoglobin protein to behave abnormally, causing red blood cells to lose their normal spherical shape and become bent like a sickle, hence the name "sickle cell" anemia
Answer:
The most appropriate reason for the presence of genetic diversity among siblings would be an option A.
Crossing over is an event that place during pachytene stage of prophase I. During this event, the genetic material is exchanged between the non-sister chromatids of homologous chromosomes.
It results in the production of a new combination of alleles in gametes. These combinations can be different from either parent.
So, when genetically varied gametes fused to form a zygote, it results in the development of genetic variation among population including siblings.
Answer:
Hailey, a local registered dietitian, frequently joins Aaron during his cooking classes at the local community hospital. Hailey often points out the common food sources of soluble fiber during Aaron's one hour cooking class. When working with patients and their families in their hospital rooms, she often explains to how common foods containing soluble fiber can play a major role in reducing the risk of having another heart attack. For this evening's cooking class, Hailey set up a display of five common items on a table and asked for a volunteer to select the ones which provide soluble fiber. During the cooking class, Jeff offered to try his hand at choosing the items which provide soluble fiber. Jeff should select all of the following items except:
canola oil
Explanation:
Canola oil contains fatty acid rather than fiber which Jeff is looking for among the food staples presented to him
<span>In order to obtain the building blocks for larger carbohydrates, such as cellulose and starch, plants rely on photosynthesis to produce a smaller carbohydrate, glucose. During the process of photosynthesis, atmospheric carbon dioxide and water are combined in the presence of light to produce glucose and oxygen. This glucose is then polyemerized in order to create larger, more complex carbohydrates such as cellulose.</span>
<span>If life means the growth of living plants such as cyanobacteria or blue-green algae, then it is true that life is the one responsible for the production of oxygen by photosynthesis. Through the use of the abudance of sunlight, water and carbon dioxide, oxygen can be produced. Until now, with the help of the plant's symbiotic cyanobacteria and the process of photosynthesis, oxygen is still present.</span>
