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
<span>Plants have evolved several adaptations to life on land, including embryo retention, a cuticle, stomata, and vascular tissue.
Don't know if this is what your were looking for..
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Answer:
Iᴬi and Iᴮi (Type A and type B)
Explanation:
Make a punnet square. Since offspring gets one allele from each parent, use that to solve.
Low amounts of adrenaline, secreted within 30 seconds of learning, have a role in the consolidation of memory. Emotions that produce adrenaline therefore have an effect on the strength of a newly forming memory. The memories that are formed under circumstances of emotional arousal are often vital to survival.
Particularly at risk for waterborne pathogens are: e. all of the above
