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dmitriy555 [2]
3 years ago
9

Explain why increasing the amounts of the two enzymes changed the life spans of the mice.

Biology
1 answer:
N76 [4]3 years ago
8 0
<span>The two enzymes p53 and Arf, were boosted with a genetically engineered technique, which made the mice lifespan longer by 16% than a normal mouse.</span>
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Which reflex is triggered by food in the stomach, relaxes the ileocecal valve, and allows residue into the cecum?
kari74 [83]

Gastroileal reflex is triggered by food in the stomach, relaxes the ileocecal valve, and allows residue into the cecum.

The gastroileal reflex is triggered by the presence of food in the stomach as well as gastric peristalsis.

Gastroileal reflex brings about peristalsis in the ileum as well as the opening of the ileocecal valve, which in turn facilitates the emptying of the ileal constituents into the large intestine or colon.

The gastroileal reflex is one among the three extrinsic reflexes of the gastrointestinal tract. The other two include the gastrocolic reflex as well as the enterogastric reflex.

This type of gastrointestinal reflex is moderated by the vagus nerve and gastrin.

To learn more about peristalsis here

brainly.com/question/15265456

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The total area of land and water ecosystems and individuals needs to obtain food shelter home heating travel and waste absorptio
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B. And environmental problem should be correct
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Which of the following best describes the structure of the cell membrane?
CaHeK987 [17]

Answer:

D-A double layer of phospholipids with proteins

Explanation:

A is describing a cell wall, C is describing cytoplasm, B is describing DNA.

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3 years ago
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Water returns to the atmosphere by which biological process?
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Eric has blood type O. What could be the genotype of his grandmother Tricia? Select all that apply.
sleet_krkn [62]

Answer:

C. IBIB

D. IBiO

Explanation:

The blood group system comprises of three different kind of alleles, iA, iB, IO. As we know that a person gets two alleles for both traits, one from father and one from mother, and based on that a person gets its blood group. IA and IB are dominant to IO.

So, if a person has genotype IAIO he will have blood group A and if he has genotype IOIB he will have blood group B because A or B are dominant to O.

However, if a person has blood group O it means that he has genotype IOIO.

So, in this diagram we see that Eric has blood type O, which means that his genotype will be IOIO.

The Eric's mother Melissa has blood group B, which means that she can either had genotype IOIB and IBIB respectively.

Similarly, Eric's grandmother Tricia has genotype  B which means that she can have genotype both  IOIB and IBIB respectively.

Therefore, both C and D are correct options.

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