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Ivanshal [37]
4 years ago
5

Before DNA was discovered, in which materials did scientists think the genetic material was stored?

Biology
1 answer:
natima [27]4 years ago
5 0

Answer: We all know that DNA act as repository of genetic information in most organism. But before the discovery of DNA it was thought that proteins act as a genetic material because protein is the final product of the cell dogma of cellular system and proteins helps in the formation of tissues and organs.

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Which of the following best describes a shield volcano
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The term describing bacteria with flagella that are arranged as a tuft coming from one pole is __________.
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The correct answer is- Lophotrichous

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There are four types of bacteria based on the presence and distribution of flagella on them. The bacteria which have only one flagellum at one pole that bacteria is called monotrichous.

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4 years ago
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roposed that the 32P label was entering PE molecules by direct exchange (swapping phosphate groups with those found in solution)
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This can be demonstrated by using an acellular environment to observe the 32P label entering phosphatidylethanolamine (PE) molecules by direct exchange.

Phosphatidylethanolamine (PE) is a major lipid component of cellular membranes in a wide range of organisms.

A scientist proposed that the 32P label was entering PE molecules by direct exchange, this can be proved using acellular environment.

In acellular environment, there aren't any bacterial cells to synthesize new PE. So if the 32P is incorporated into the PE in the acellular environment that means the proposed idea in the question stem is correct.

If no 32P is incorporated into PE in the acellular environment, then that means proposed idea is not correct.

Disclaimer: The question is not completed.

A scientist proposed that the 32P label was entering PE molecules by direct exchange (swapping phosphate groups with those found in solution) and NOT through synthesis of new PE by bacterial cells. What experimental modification can show this is NOT the case?

Learn more about Phosphatidylethanolamine on

brainly.com/question/16008132

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