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Sergio [31]
3 years ago
7

An ____________ is any large molecule or small organism whose entry into the body provokes synthesis of an antibody or immunoglo

bin.
Biology
1 answer:
spin [16.1K]3 years ago
8 0
An antigen causes the body to make antibodies.
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Evidence suggests that there is a relationship between ancient dinosaurs and modern birds. Through time, each occurrence of a ne
damaskus [11]

The answer is mutation of genes.  The mutations were beneficial and gave the individuals of  the population advantage and hence increased their survival. The classic features of birds evolved one by one and gave birds advantage over their dinosaurs counterparts, especially the feature of small size.






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3 years ago
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How does insulin receptors affect homostaiss
Anna007 [38]
Insulin receptors regulate glucose level in blood. Without that, glucose level would uncontrolled (not normal) (high and low) and it would be impossible to maintain homeostasis. I Hope I Helped You Good Luck.
6 0
3 years ago
Determine whether the following events occur during initiation, elongation, or termination. This is regarding protein synthesis.
erik [133]

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.


8 0
3 years ago
In a Punnett Square showing a cross of two organisms heterozygous for a particular trait (Ft), what would be the predicted ratio
OverLord2011 [107]
OD. 2 FF: 2 ft

tell me if I’m right
4 0
3 years ago
When is the most accurate description of the ecosystem
KatRina [158]
The ecosystem is everything that exists in a particular environment.
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3 years ago
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