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inysia [295]
3 years ago
6

Which of the following distinguishes a prokaryotic cell from a eukaryotic cell?. . A. the presence of a nucleus. B. the presence

of a cell membrane. C. the ability to interact with the environment. D. the ability to reproduce. . If you could tell me the answer and a explanation that would be great or just the answer thanks.
Biology
1 answer:
Serhud [2]3 years ago
5 0
I believe it should be A. The presence of a nucleus. Because for response B, it's not true as prokaryotes and eukaryotes possess cell membranes. It can't be C as their ability to interact with the environment is not as different. This is also true of ability to reproduce.
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Answer:

The correct answer is C eukaryotes have a greater variety of genetic material than prokaryotes.

Explanation:

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   Due to this greater variety of genetic material the domain eukarya are more complex than archea and or bacteria domains.

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3 years ago
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What is the probability that the first offspring from the cross listed below will be heterozygous for all loci?
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Answer and Explanation:

<u>Cross:</u> aa Bb dd Ee x AA bb Dd Ee

We can calculate the probability of getting heterozygous individuals in the progeny by using the <u>product rule</u>. Assuming that these four genes <u>assort independently</u> (<em>events that occur independently from each other</em>), we can infer that the F1 will have the next genotypic proportions for each gene:

1) aa     x     AA

F1) 4/4=1 Aa

2) Bb    x    bb

F1) ½ bb

     ½ Bb

3) dd    x    Dd

F1) ½ dd

     ½ Dd

4) Ee    x    Ee

F1) ¼ EE

    2/4 = ½ Ee

     ¼ ee

So, to know what the probability is that the F1 of being heterozygous for all loci, we must multiply the respective individual probabilities of getting a heterozygous genotype, like this:  

1 Aa   x   ½ Bb   x    ½ Dd    x    ½ Ee = 1/8 AaBbDdEe

                                 

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3 years ago
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Answer:

yes

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