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Mumz [18]
1 year ago
5

A researcher is evaluating the expression of p53 in cells she is culturing in the laboratory. She notices that in a small group

of cells, high levels of phosphorylated p53 occur in the nuclei. What can she deduce about these cells?
Biology
1 answer:
spin [16.1K]1 year ago
7 0

Answer:

p53 gene is an important gene that regulates the proper functioning of the cell. This gene plays an important role in the cell cycle progression and acts as genome guardian.

Any mutation in p53 leads to the formation of the different types of cancer cells. The p53 gene is activated by teh phosphorylation at the particular sites.  High levels of phosphorylated p53 in the cell indicates that the cells DNA is highly damaged and mutated.

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why does the presence of 22 large herbivore species at Mpala seem to contradict the competitive exclusion principle Dr. Pringle
stealth61 [152]

Dr. Pringle suggests that there's only very few large herbivorous species that can survive in certain area. The reason behind his claim is that according to him there will be only enough food for few large species, so there's natural limitations in the food sources, as there should be enough to support them in order for them to survive.

On the other hand, in Mpala, there's 22 large herbivorous species, which directly contradicts Dr. Pringle's hypothesis. The reason why so many large species of herbivores an survive in Mpala and always have enough food for all of them, is that they have all specialized in eating certain types of plants or parts of plants, thus they are not direct competition to one another, and there's always enough food for all of them.

5 0
2 years ago
The study of which structure was instrumental in the formulation of the modern cell theory? plant cell animal cell cell membrane
podryga [215]

Answer;

-DNA molecule

Explanation;

-According to cell theory; All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

-The modern version of the Cell Theory includes the ideas that:

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  • Heredity information (DNA) is passed on from cell to cell.
  • All cells have the same basic chemical composition.

-Therefore the study of DNA molecule was instrumental in the formulation of the modern cell theory.

7 0
2 years ago
Read 2 more answers
Which of the following best explains how the light reactions of photosynthesis generate ATP?
frutty [35]

Answer:

B. A proton gradient drives the formation of ATP from ADP and inorganic phosphate via ATP synthase.

Explanation:

Light reaction of photosynthesis includes the splitting of water in the presence of sunlight and electron transfer from PSII to PSI via an electron transport system. During the transfer of electron through cytochrome of the electron transport system, the proton concentration gradient is generated across thylakoids. The proton concentration gradient is harvested to drive ADP phosphorylation by the catalytic site of ATP synthase accompanied by downhill movement protons through its proton channels.

6 0
2 years ago
The phosphorus in all biological tissues can be traced back to ________.
bezimeni [28]

Answer:

The phosphorus in all biological tissues can be traced back to phosphorus weathered from rock.

4 0
2 years ago
19. If a scientist needs to use a large dataset to explore how corn grows in different soils, how would this data be classified?
Illusion [34]

<u>ANSWER:</u>

The correct option is B- Qualitative.

<u>EXPLANATION:</u>

When the growth of corn has to be recorded, the quality of the corn grown in different soils needs to be recorded. Qualitative methods are best used to classify quality of anything.

Qualitative data basically is non-numerical data which in the case of corns can be the length of the corn plant, the sweetness of the corn kernel or the hardness or softness of the corn. This data cannot be recorded using numerical values and so other methods of data recording cannot be used.

7 0
2 years ago
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