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kupik [55]
3 years ago
10

Suppose it were possible to conduct sophisticated microscopic and chemical analyses of microfossils found in 3.5-billion-year-ol

d stromatolites. Which of the following structures would be surprising to observe?
I. RNA
II. vesicles
III. a nucleus
Biology
1 answer:
soldier1979 [14.2K]3 years ago
7 0

Answer:

The correct answer is option 3. a nucleus.

Explanation:

The first genetic material present in the early organisms were RNA which was present in the microscopic organisms back then 3.5 billion years ago which means it is normal to have RNA in such microfossils chemical analysis.

Since, the nucleus was not present in early life forms of prokaryotes like bacteria. so, it is unusual to find nucleus in the fossils of stromatolite rocks.

Thus, option III is the correct answer.

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In a particular plant, white fruit color is dominant over yellow. If two white-fruited individuals with genotypes are unknown ar
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The probability of obtaining a yellow-fruited plant from the cross is ¼ or 25%.

<h3>WHAT IS A HETEROZYGOUS CROSS</h3>

A heterozygous cross is a cross between two individuals that are heterozygous for two genes.

According to this question, white (W) fruit color is dominant over yellow (w). If two white-fruited individuals with genotypes that are unknown are crossed i.e. Ww × Ww.

The offsprings of this cross are as follows:

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Therefore, the probability of obtaining a yellow-fruited plant from the cross is ¼ or 25%.

Learn more about heterozygous cross at: brainly.com/question/14109187

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