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unicorngirl13 unicorngirl13
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Posts: 438
Rep: 8 0
4 years ago
After reading the paragraph below, answer the questions that follow.


Gene knockdown is a procedure used to reduce gene expression in cells or organisms so that scientists can investigate gene function. While there are several ways to knock down gene expression, RNAi is one of the most commonly used approaches. Suppose that a research team wants to investigate where a new gene X is expressed in the fruit fly, Drosophila melanogaster. Using RNAi, they obtained the results shown below examining the expression of gene X in four types of tissues.


Which of the following components could the researchers have used to successfully perform RNAi against gene X?

▸ a transcription factor that binds to and activates the gene X promoter

▸ an siRNA molecule that has a complementary sequence to that of gene X

▸ an enzyme that helps fold the X protein after it is translated
Textbook 
Campbell Biology: Concepts and Connections

Campbell Biology: Concepts and Connections


Edition: 8th
Authors:
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gturgtur
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Posts: 373
4 years ago
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wrote...
4 years ago
After reading the paragraph below, answer the questions that follow.


Gene knockdown is a procedure used to reduce gene expression in cells or organisms so that scientists can investigate gene function. While there are several ways to knock down gene expression, RNAi is one of the most commonly used approaches. Suppose that a research team wants to investigate where a new gene X is expressed in the fruit fly, Drosophila melanogaster. Using RNAi, they obtained the results shown below examining the expression of gene X in four types of tissues.


What can you conclude from these data?

▸ RNAi was effective only in nervous tissue.

▸ Gene X is expressed equally in all four tissue types.

▸ Gene X likely encodes for a muscle protein.

▸ RNAi does not work against gene X.
wrote...
4 years ago
RNAi was effective only in nervous tissue.
wrote...
4 years ago
Thanks
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