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djyliett [7]
2 years ago
10

What type of symmetry does an organism have if it has five identical parts extending from a central hub? A. bi-radial symmetry B

. mirrored symmetry C. penta-radial symmetry D. tubed symmetry
Biology
1 answer:
lapo4ka [179]2 years ago
4 0
Pretty sure it <span>C) penta-radial symmetry.</span>
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If a cell loses control of gene expression, what happens?
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Abnormal, unhealthy cells develop

Explanation:

Gene expression is the process through which genes are turned on through transcription, and to some extent through the translation of the mRNA.

Gene expression is highly regulated to ensure the cell can create the correct combination of proteins to carry out it's tasks. If gene expression is out of control, the mRNAs that are transcribed in the cell are not properly regulated, and therefore the proteins in the cell are not regulated. Since proteins carry out essentially every function in the cell, the cell becomes unhealthy, and incorrectly uses its resources.

Accurate control of gene expression also ensures that the cell can perform specialized functions, it is what makes a heart cell distinct from a brain cell, for example. Therefore, if it is out of control, cells will not be specialized correctly.

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DNA is a double stranded structure, which is present in helical structure and both the strands are twisted together. In order to make the mRNA copy with the help of the enzyme RNA polymerase, DNA must open up. Then only RNA polymerase will be able to access the nucleotides of DNA.

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[ Answer ]


Physiology


[ Explanation ]


Physiology is the study of the functions and mechanisms in which your body works. It is how your body keeps you alive and how each part functions differently. It is how your organs, organ systems and cells keep you alive. They all perform different functions, but they all work together. It is almost like a car. Each part is different. The brakes stop the car, the gas makes the car go, this does this and that does that. However, even though they are all different, they all have one job; to make the car go from one location to the other. Physiology is the study of how each organ or cell does it's job. They explore deeper and reveal it's actual function.


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Horomones travel through the body by means of the?
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