the answers I put is wrong
1. Having a sickle cell anemia crisis is a severe condition of reduced red blood cell count.
2. Having sickled red blood cells lead to the symptoms like having pain in the chest and the throbbing of her leg.
3. A person having sickle cell anemia is mostly tired due to reduction in red blood cells, so they cannot do any work with their bodies. There would difference in the personal appearances like yellow eye and skin looks pale and the skeletal system become weak too. There is trouble with breath too.
4. The symptoms are as follows like the patient fall in to anemia condition, urine is dark in color, eyes are yellow, and person looks pale and the body experiences frequent pain and delay in the body growth.
5. Hydroxyurea is the medication used here. The pros of this are the frequent body pains reduces and reduction in need of blood transfusion. the cons are increase of infection and this particular drug may cause tumors and leukemia.
Answer:
No.
Explanation:
Pink flower colour in snapdragon is as a result of incomplete dominance. The pink flower colour has no allele in nature. Instead, the pink colour results from incomplete dominance of the allele that codes for red flower colour over the allele that codes for the white flower colour.
Assuming that the allele for red flower colour in the plant is R and the allele for white flower colour is r, true breeding red and white flower colour plants will have the genotype RR and rr respectively. In heterozygote state (Rr), the phenotype is usually pink, showing that the R allele has incomplete dominance over the r allele.
<em>Hence, there is no way for plant breeders to develop a true-breeding pink-flowered snapdragon. without some genetic manipulations/mutation.</em>
Answer:
True
Explanation:
Precambrian, period of time extending from about 4.6 billion years ago (the point at which Earth began to form) to the beginning of the Cambrian Period, 541 million years ago. ... The Precambrian represents more than 80 percent of the total geologic record.
