Answer:
Joshua was suffering from dehydration
Explanation:
Dehydration is a condition that occurs when the body looses great quantities of fluids (mainly water) and it exceeds the amount of what is taken in. In other words, this condition happens when the amount of water ingested is less than the one loosed. When we are dehydrated, the body lose its ability to function normally and symptoms start to show up. You start losing your body weight, your skin becomes very dry, you start feeling dizzy, you have headaches, and many other symptoms.
The answer to this question is d
Answer:
Becky’s THR would be between 157 bpm and 190 bpm during the physical activity.
Explanation:
From the given information;
Since Becky is 16 years old, in order to evaluate the MHR, we deduct the age from 220.
Therefore, the evaluation of the maximum age-related heart rate MHR = 220 - 16 = 204 beats per minute
We are being told that she then multiplies her MHR by 77% and 93%.
i.e
77% level: 204 × 0.77 = 157 bpm
93% level : 204 × 0.93 = 190 bpm
The evaluation indicates that the vigorous-intensity physical activity of Becky at 16 years old will need the target heart rate to remain between 157 bpm and 190 bpm during the physical activity.
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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