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Kay [80]
3 years ago
10

The hypothesis was that all three segments of the regulatory region are required for highest expression of the hoxd13 gene. is t

his hypothesis supported by the results? the hypothesis was that all three segments of the regulatory region are required for highest expression of the hoxd13 gene. is this hypothesis supported by the results? no; they did not delete the promoter, so the gene could still be expressed even without the segments. no; even when segments were deleted, the hoxd13 gene was still being expressed. yes; when any of the segments were deleted, the expression level dropped to less than 100% of the control. yes; when all three segments were present, the expression level was at 100%.

Biology
1 answer:
Andre45 [30]3 years ago
3 0
Attached is the image concerning the HOXD13 gene along with the regulatory and promotor regions of the gene.

The answer will be "yes; when any of the segments of deleted, the expression level dropped to less than 100% of the control."

The experiment comprises of testing the expression of the HOXD13 mRNA from the gene by deleting segments of the regulatory regions. In the event of deletion of one segment (segment C), the mRNA expression dropped to around 60% of the control. When two segments are deleted (segments B and C), the mRNA expression dropped to less then 40% of the control. When all segments are deleted, the mRNA expression was almost to 0%. 

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2 years ago
If humans had been present to build log structures during the Carboniferous period (though they were not!), which plant types wo
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The plant types suitable during that period would be ferns, horsetails, and lycopods.

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A geologic period and system, which covers 60 million years from the termination of the Devonian period to the start of the Permian period is known as the Carboniferous period. During the Carboniferous period, the plant life was luxuriant and extensive, mainly at the time of Pennsylvanian. It comprises ferns and fernlike trees, that is, the giant horsetails known as club mosses, calamites, or lycopods like Sigillaria and Lepidodendron.  

Thus, if humans had been present to construct log structures during the Carboniferous period, then they would have used logs of ferns, horsetails, and lycopods for construction work.  

8 0
3 years ago
You go for a run and breathe heavily for an extended amount of time. How is this affecting your pH levels?
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You will run and breathe heavily for a long period of time. is affecting your pH levels, Lowering the pH, making it more acidic.

  • A. Lowering the pH, making it more acidic.

<h3>How does respiratory rate affect pH?</h3>

When it is respiratory, it occurs due to an increase in the amount of volatile acids in the body, which lead to an increase in pCO2. When it is metabolic, it occurs due to the accumulation of non-volatile acids, which lead to the loss (excessive consumption) of bases, mainly bicarbonate, causing a drop in pH.

With this information, we can conclude that By eliminating carbon dioxide during expiration, pulmonary ventilation reduces the acidity of the blood, helping it to maintain the desired alkalinity level.

Learn more about respiratory rate affect pH in brainly.com/question/8887207

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6 0
2 years ago
An element is defined as a substance that
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an element is a pure substance which can not be spilt into simpler substances by chemical means

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examples hydrogen, oxygen, copper

3 0
3 years ago
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