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maria [59]
3 years ago
6

How does the structure of phylogeny charts explain homologous structures in organisms?

Biology
2 answers:
MissTica3 years ago
8 0
<span>All organisms mutate their genome automatically when an environment changes, creating new traits and structures.</span>
ale4655 [162]3 years ago
3 0

All organisms mutate their genome automatically when an environment changes, creating new traits and structures.

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Process in which the nucleus divides to form two identical nuclei
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In general division of the nucleus is by the s stage of interphase and is often accompanied by cytokinesis which divides the cytoplasm organelles and cell membrane into two new cells containing roughly equal shares of these cellular components .
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Boundary between warm and cold water in an ocean or a lake
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what are you trying to ask?

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In mitosis of a single cell, the nucleus
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In mitosis of a single cell, the nucleus B) splits into two.
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What would happen to an egg that had a nonfunctional chorion?
Firlakuza [10]

Answer:

a. The embryo would suffocate or dehydrate.

Explanation:

Chorion is one of the four extraembryonic membranes that cover the embryo inside the egg. Chorion develops into the part of placenta-derived from the fetus.

Trophoblast develops into chorion during pre-embryonic development. Once formed, the chorion develops villi that are required for the exchange of material, specifically the respiratory gases, between the mother and fetus.

If an egg had nonfunctional chorion, the developing embryo will not get the supply of gases. In the absence of gas exchange between mother and embryo, the embryo will die of suffocation.

Chorion is also involved in the development of the placenta which in turn is the organ of the exchange of nutrients and gases and removal of toxic material.

Nonfunctional chorion would not support the placenta formation and the embryo will not get the supply of nutrients and water.

8 0
3 years ago
A research team needs an antibody that binds to a protein of interest so that protein expression can be monitored. They use epit
antiseptic1488 [7]

Answer:

C.The added epitope disrupts the function of the tagged protein

Explanation:

When an additional sequence is tagged to a protein to use comercial antibodies, there are several reasons why this procedure wouldn't work as expected (note that we're assuming the protein is being expressed but it's not possible to detect it).

For example, the sequence of nucleotide added to codify for the tagged epitope are removed during the RNA processing. In that case, the protein would be expressed without the epitope, so it would be impossible to localize it with the antibodies.

Also, it could be that the new epitope is affecting some way the protein folding, making it not functional. This way, it would be degraded by the cell so it wouldn't be detected.

Another possibility is that the epitope doesn't affects the protein folding nor its function, but during the folding ends up in a conformation that makes it inaccesible for the antibody.

In summary, the way as the possible answers to this question are shown, the correct option seems to be C:<em> The added epitope disrupts the function of the target protein.</em>

3 0
3 years ago
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