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alexgriva [62]
3 years ago
6

What type of hypothesis is demonstrated by the following statement? "There will be no difference in the number of adverse events

among clients discharged 2 days after an abdominal hysterectomy compared with clients discharged 4 days after an abdominal hysterectomy."A. Nondirectional hypothesisB. Directional hypothesisC. Deductive hypothesisD. Null hypothesis
Biology
1 answer:
beks73 [17]3 years ago
4 0

Answer:

The correct answer is option D. "Null hypothesis".

Explanation:

Null hypothesis is characterized by stating that there is no difference between the specified populations, which is the opposite of the alternative hypothesis that states that there is a difference between the populations. Since the hypothesis included in the question states that "There will be no difference in the number of adverse events...", it  is concluded that is an example of null hypothesis.

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Determine whether the following events occur during initiation, elongation, or termination. This is regarding protein synthesis.
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Answer:

The provided events can be classified as:

Initiation

  • In prokaryotes, the Shine-Dalgarno sequence pairs with rRNA.
  • In E. coli, mRNA binds to the 30S ribosomal subunit.

Elongation

  • In E. coli, EF-Tu delivers an aminoacyl-tRNA to the ribosome
  • Initiator tRNA enters the P site.
  • In E. coli, EF-Tu hydrolyzes.
  • Translocation occurs

Termination

  • The ribosome has mRNA, an empty A site, and deacylated tRNA in the P site

Translation is the process by which polypeptide chain is synthesized based on the codon sequence of the mRNA (messenger ribonucleic acid).

It is divided into three stages:

Initiation: The small and large sub-units of the ribosome get assembled around the initiation codon. It forms three sites (A, P, and E site) for interaction tRNA and mRNA.

Elongation: Specific charged-tRNA enters from A site and transfers its amino acid to the growing polypeptide chain in P site. Uncharged tRNA exit from the E site. Ribosome moves or translocates to the next  codon.

Termination: As soon as ribosome reaches the termination codon, it releases the newly synthesized polypeptide chain.


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