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Ilia_Sergeevich [38]
1 year ago
7

Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are all of the following except __________.

Biology
1 answer:
hodyreva [135]1 year ago
8 0

Your question was incomplete (please check below the full content). The evidence that supports the prokaryotic origins of mitochondria and chloroplasts do not include multiple DNA copies associated with inner membranes.

<h3>What is organellar DNA?</h3>

The organellar DNA is the genome contained within mitochondria and chloroplasts, which is independent of nuclear eukaryotic DNA.

The organellar DNA contains multiple DNA molecules, which are found in association with the inner membrane, ant is not found in prokaryotic life forms.

The complete question in this case is: "Evidence that supports the prokaryotic origins of mitochondria and chloroplasts are the presence of mitochondria, a eukaryote engulfing prokaryotic photosynthetic cells, and non-photosynthetic eukaryotes, EXCEPT."

The endosymbiotic theory states that mitochondria and chloroplasts evolved from prokaryotic microorganisms that entered into a primitive eukaryotic cell.

This theory is supported by certain features of mitochondria and chloroplasts such as a similar size to prokaryotes.

In conclusion, evidence do not include the arrangement of the organellar DNA.

Learn more about mitochondrial DNA here:

brainly.com/question/1563697

#SPJ1

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Answer: Food storage

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Here, the food is stored until it is completely broken down into simpler form and enzymes act on them.

The food is then absorbed in the small intestine. But before this food is temporarily stored in the stomach where all the digestive juices and enzymes come to act on the food.

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2 years ago
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Each genetic outcome of a genetic cross between the same parents is ______ all previous outcomes. multiple choice question.
tino4ka555 [31]

A genetic outcome of a genetic cross between the same parents is independent of previous outcomes.

<h3>What is genetic variation?</h3>

Genetic variation can be defined as the genetic poll of an organism, which is the raw material trough which evolution can occur by natural selection.

During sexual reproduction, the formation of gametes generates different genetic backgrounds which are independent of distinct gametes.

In conclusion, each genetic outcome of a genetic cross between the same parents is independent of all previous outcomes.

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8 0
1 year ago
What index provides evidence of when different types of life evolved on Earth?
aev [14]

There are all sorts of ways to reconstruct the history of life on Earth. Pinning down when specific events occurred is often tricky, though. For this, biologists depend mainly on dating the rocks in which fossils are found, and by looking at the “molecular clocks” in the DNA of living organisms.

There are problems with each of these methods. The fossil record is like a movie with most of the frames cut out. Because it is so incomplete, it can be difficult to establish exactly when particular evolutionary changes happened.

Modern genetics allows scientists to measure how different species are from each other at a molecular level, and thus to estimate how much time has passed since a single lineage split into different species. Confounding factors rack up for species that are very distantly related, making the earlier dates more uncertain.

These difficulties mean that the dates in the timeline should be taken as approximate. As a general rule, they become more uncertain the further back along the geological timescale we look. Dates that are very uncertain are marked with a question mark.

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The correct answer is Thermosphere.

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