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sveta [45]
3 years ago
12

18. RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scient

ific laboratories?
A. RNAi is observed in nature, but it can't be used in laboratories.
B. RNAi allows scientists to turn off one gene specifically to study its effect.
C. RNAi has been used in laboratories to make bacteria more susceptible to antibiotics, but has limited application in eukaryotic cells.
D. RNAi is a powerful tool for degrading mRNA, but because it doesn't degrade other types of RNA, its use is limited.
Biology
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

b. IS YOUR ANSWER

Explanation:

BC IT IS

MrRissso [65]3 years ago
6 0

Answer:

B

Explanation:

RNAi is a cellular mechanism for post-transcriptional gene silencing. After transcription of a gene into mRNA, small interfering RNA (siRNA) and microRNA (miRNA) can target the mRNA to form dsRNA. This mRNA then becomes a target of ribonucleases such as the Dicer that break it apart. These mRNA, therefore, do not reach the cytoplasm for translation by ribosomes. This mechanism is hence harnessed and manipulated by scientists to study genes by silencing them.

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Why does DNA change from one generation of species to the next? Explain the two reasons. (be sure to include the concept of RAND
pogonyaev

Answer:

RANDOM SPECIES

Explanation:

We're no strangers to love

You know the rules and so do I

A full commitment's what I'm thinking of

You wouldn't get this from any other guy

I just wanna tell you how I'm feeling

Gotta make you understand

Never gonna give you up

Never gonna let you down

Never gonna run around and desert you

Never gonna make you cry

Never gonna say goodbye

Never gonna tell a lie and hurt you

We've known each other for so long

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No, I'm never gonna give you up

No, I'm never gonna let you down

No, I'll never run around and hurt you

Never, ever desert you

We've known each other for so long

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