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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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the allele for white fur is revessive and the allele for normal fur is dominant the frequency for the normal fur allele is 0.60.
Mariulka [41]

Answer:

36% of wolves have normal fur.

Explanation:

Given , the allele for white fur is recessive and the allele for normal fur is dominant

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Percentage of the wolves with normal fur is

0.36*100\\= 36%

 

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