3 years ago

After age ______ or so, the total calorie needs of physically inactive adults fall steadily throughout adulthood.

Biology

1 answer:

irakobra [83]3 years ago

4 0

Answer:

Explanation:

According to dietary guidelines, from the age of 30, the calorie needs of physically inactive adults begin to decline.

This is because physical activities and exercise aid the human body in the burning up of calories, thus, when an adult does not engage in any activity, he burns less calories than those who do and thus requires less calories than them

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3 years ago

If all 5' and 3' splice sites were always used to process the pre-mRNA into mRNA, how many possible distinct mRNA sequences woul

lord [1]

The question lacks the diagram. The diagram has been attached below.

Answer:

Explanation:

Exons may be defined as the coding region of the RNA whereas introns are the non coding region of the RNA. The introns must be removed out from the RNA to makes it functional molecule.

The splicing of the given molecule results in the formation of single mRNA. The 1 splicing of the introns remove intron A whereas the second splicing results in the removal of intron B. The functional mRNA consists of the mRNA with exon 1,2 and 3.

Thus, the answer is 1.