Answer: Cover the burns with a clean, white, dry sheet.
Explanation:
The first degree burns affect the outer surface of the skin, these may cause redness, swelling and pain. The second degree burns may affect both outer and underlying surface of the skin. These burns may cause pain, swelling, redness and blisters. The third degree burns are the severe and lethal burns these affect the nerves and the bones.
The medical responders have removed the clothing and has cooled the burn. The responder must cover the burn and blisters with dry white sheet to prevent the contact of external air with the blisters which may cause irritation and itching at the burn site.
a. A translation stop codon is added at the 3' end of the pre-mRNA.
c. A poly-A tail (50-250 adenine nucleotides) is added to the 3' end of the pre-mRNA.
d. Coding sequences called exons are spliced out by ribosomes.
Explanation:
In eukaryotes, during protein synthesis, the RNA must exit nucleus through the pores on the nuclear membrane and enter into the cytoplasm to undergo translation.
The exit processes of mRNA are: the 5’ capping, 3’ Poly-A tail, and pre-mRNA splicing.
The 5’capping is the initial step with addition of 7-methylguanosine cap to the 5’ end of the mRNA by phosphate linkage. This process protects the mRNA from degrading and helps to initiate translation processes.
The 3’ Poly-A tail step is the cleaving of pre-mRNA and addition of addition of around 200 A nucleotides or the 3’poly (A) tail to the mRNA by the poly (A) polymerase enzyme protein complex. This prevents pre-mRNA degradation, facilitates movement of mRNA to the cytoplasm, and initiates translation.
Pre-mRNA splicing is done to remove the introns from the mRNA because they are not part of function protein coding. The exons which take part in protein coding sequence are spliced once the introns are excised.
Finally, the resultant mRNA will exit the nucleus and enter the cytoplasm to undergo translation
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I think the answer that is not correct is number 3.
Answer: Sedentary Lifestyle
Explanation:
Osteoporosis is a medical condition that causes bones to become so fragile such that with little activity or stress can cause the bones to fracture without having the ability to create new bones. The primary risk associated with this condition range from age, race, body size, underlying conditions like cancer requiring treatment, lifestyle choices(smoking, sedentary lifestyle, smoking, etc.
For 85-year-old white woman who walks 1 mile (1.6 km) every morning and every evening. and continues to smoke but has cut back to half a pack per day with oophorectomy at age 45 secondary to stage I ovarian cancer. Sedentary lifestyle will not be primary risk factor for osteoporosis for her because she walks i mile every morning and evening, but other primary causes may attribute to her osteoporosis.
