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Lisa [10]
3 years ago
5

In a eukaryotic cell, dna is found ina)a vacuole.

Biology
1 answer:
erica [24]3 years ago
3 0
The correct answer is ... B) a nucleus. DNA is found, tightly coiled in chromosomes in the nucleus.
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Of the four animals (human,cat,whale,bat) which would you argue are the most closely related on the evolutionary tree?Justify yo
Ira Lisetskai [31]

Answer:

I think humans and whales are closely related on the evolutionary tree because they are both mammals and both have endoskeleton

4 0
2 years ago
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What factor slows transcription?
Leya [2.2K]

Repressor slows down transcription.

RNA Polymerase enzyme transcribes mRNA from DNA.

Explanation:

Promoters are the 100 to 900 bps long sequence of DNA, that helps in the initiation of transcription. The transcription gets slow down as repressor bind to the promoter region hampering the attachment of RNA Polymerase enzyme which is responsible for transcription.

The process of transcription is the conversion of DNA into mRNA as told in the central dogma of molecular biology. Enzyme responsible for transcription is RNA polymerase. It is the first phase of gene expression, where DNA strand is copied into mRNA called a primary transcript.

7 0
3 years ago
How could you now analyze or interpret how social reality affects our daily function as individual or as a social worker? If yes
alexgriva [62]

Answer:

Concerts, sports games, and political rallies can have very large crowds. When you attend one of these events, you may know only the people you came with. Yet you may experience a feeling of connection to the group. You are one of the crowd. You cheer and applaud when everyone else does. You boo and yell alongside them. You move out of the way when someone needs to get by, and you say “excuse me” when you need to leave. You know how to behave in this kind of crowd.

It can be a very different experience if you are travelling in a foreign country and find yourself in a crowd moving down the street. You may have trouble figuring out what is happening. Is the crowd just the usual morning rush, or is it a political protest of some kind? Perhaps there was some sort of accident or disaster. Is it safe in this crowd, or should you try to extract yourself? How can you find out what is going on? Although you are in it, you may not feel like you are part of this crowd. You may not know what to do or how to behave.

Explanation:

I don't have enough knowledge about this hope it helps

6 0
2 years ago
Compare the potiential energy stored in lipids proteins and carbohydrates​
yarga [219]

Answer:

The amount of lipids stored as an energy reserve far exceeds the energy stored as glycogen since the human body is simply not capable of storing as much glycogen compared to lipids. Lipids yield 9 kcal of energy per gram while carbohydrates and proteins yield only 4 kcal of energy per gram.

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2 years ago
Which discovery supported the endosymbiotic theory?
alexdok [17]

The right answer is A.) DNA in mitochondria .

Eukaryotic cells, with their many intracellular organelles, have long been considered progeny of prokaryotes that would have become more complex as a result of genetic mutations. But from the 1960s, biologist Lynn Margulis proposed an alternative explanation that was first received coldly by the scientific community. His endosymbiotic theory, proposed in a more formal way in a 1981 book, proposes that eukaryotic cells as we know them today would be the result of a series of symbiotic associations with different prokaryotes.

Mitochondria and chloroplasts also have their own DNA that is not trapped in a nucleus, which is also the case with prokaryotes. However, the proteins encoded by this DNA do not cover all mitochondrial proteins. The prokaryote is thought to have lost some genes to the nucleus of the cell, a process known as "endosymbiotic gene transfer". For this reason, mitochondria and chloroplasts are now host-dependent for the synthesis of most of their components.

3 0
3 years ago
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