Answer:
Explanation:
Definition Mitochondria (singular: mitochondrion) are organelles within eukaryotic cells that produce adenosine triphosphate (ATP), the main energy molecule used by the cell. For this reason, the mitochondrion is sometimes referred to as “the powerhouse of the cell”.
All the steps of GPCR signaling would be prevented in the presence of a beta-blocker drug.
<h3>What is Beta-blocker?</h3>
Beta-blocker may be defined as a kind of medication that chokes the activity of substances, such as adrenaline, on nerve cells and provokes blood vessels to relax and dilate.
Adrenergic receptors choke the attachment of catecholamine that is epinephrine to the G-protein. G-protein activates adenylyl cyclase which in turn activates protein kinase A.
But when the beta-blocker drug is subjected to this pathway, it blocks the attachment of the hormone to their receptors, hence none of the pathway or steps would be carried forward. This is because signaling is not initiated.
Therefore, all the steps of GPCR signaling would be prevented in the presence of a beta-blocker drug.
To learn more about GPCR signaling, refer to the link:
brainly.com/question/9882354
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Answer:
There is 1/6 of the probability that at least one of the children is albino.
Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
Glaciers created the edges of the continents as they moved rocks from one continent to another.
Ocean waves weathered the edges of the continents so they appeared to look like giant puzzle pieces.
Wind erosion carries pieces of rock away from the continents exposing similar rock types.
The continents were part of an ancient, single landmass called Pangea that moved apart over millions of years.
THE FIRST ONE IS CORRECT I THINK. CAN I HAVE BRAINIEST?
