A river of air called the jet stream runs along the troposphere just near the top. The troposphere starts at ground level and rises 11 km up which is equivalent to 7 miles or 36,000ft.
About 3/4 of the air in our atmosphere is in the troposphere and almost all weather happens here. Most of the clouds are found in the troposphere layer.
The jet stream is found just near the top of the troposphere zooming along at a speed of 400km/hr (250 miles per hour)
Answer:
B
Explanation:
CRISPR-Cas9 is a gene-editing mechanism that is harnessed from bacteria’s immune system used to cut apart foreign genetic material such as that of bacteriophages. CRISPR-Ca9 has a guide sequence that is used to identify the target sequence. The Cas9 enzyme cuts this target DNA and is replaced with the required piece.
In cancer treatment, the mutated DNA can be replaced, this way, with the wild type.
1.What is the probability that a sperm from the father will contain the PKU allele?
Probability = ½
2.What is the probability that an egg from the mother will contain the PKU allele?
Probability = ½
3.What is the probability that their next child will have PKU?
Probability = ¼ (because each parent has ½ chance ½ X ½ = ¼)
4.What is the probability that their next child will be heterozygous for the PKU gene?
Probability = ½ (because each parent has ½ chance of donating the ‘P’ allele and ½ chance of donating the ‘p’ allele (½ x ½) + (½ x ½) = ½
Renin is an enzyme that helps control blood pressure and regulate levels of sodium and potassium in the body. Angiotensinogen is the hormone that causes the narrowing of blood vessels. It is released from liver to form angiotensin.
<h3>What is the role of angiotensin?</h3>
Angiotensinogen is a hormone that on hydrolysis forms angiotensin
Angiotensinogen is hydrolyzed by renin enzyme and forms angiotensin.
This angiotensin helps to increase blood pressure by the process of vasoconstriction, increased aldosterone biosynthesis and renal actions.
Thus, it can be concluded renin hydrolyzes angiotensinogen, which is released from the liver, to form angiotensin.
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From what we know, we can confirm that any measurement of time is relative when being compared to another passage of time.
<h3>What are some examples of relative time?</h3>
As stated, time, as with any measurement, becomes relative when compared to something else. For example:
- A six-hour class can be considered extremely long, however, it is minuscule when compared to the hours present in a full calendar year.
- Another possible example is how the life of a human is relatively short when compared to the time of existence of the human race.
Therefore, we can confirm that any measurement of time is relative when being compared to another passage of time, as shown with the above examples.
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