1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Fiesta28 [93]
3 years ago
13

Choose the answer that has these events of protein synthesis in the proper sequence 1. The first tRNA with Met binds to the P si

te 2. A peptide bond forms between the new amino acid and a polypeptide chain 3. tRNA comes in to the A site with a new aa, 4. A small ribosomal subunit binds with mRNA 5. tRNA in the P site leaves and the tRNA from the A site translocates to the P site
Biology
1 answer:
Simora [160]3 years ago
5 0

Answer:

4. A small ribosomal subunit binds with mRNA;

1. The first tRNA with Met binds to the P site;

3. tRNA comes in to the A site with a new aa;

2. A peptide bond forms between the new amino acid and a polypeptide chain;

5. tRNA in the P site leaves and the tRNA from the A site translocates to the P site.

Explanation:

The first step in translation i.e. protein synthesis is attachment of small ribosomal subunit i.e. 30S subunit with mRNA. Soon after that a tRNA charged with Met binds to the P site of 30 S ribosomal subunit. To this complex further 50S ribosomal subunit binds. Together all these components form '70 S initiation complex". Since this complex already has one amino acid (tRNA with Met) at the P site, in order to create peptide chain another tRNA charged with amino acid must enter the complex. The upcoming tRNA enters the initiation complex at A site. Next, due to the peptidyl transferase activity of large ribosomal subunit i.e. 50S subunit a peptide bond is formed between the amino acid at P site and amino acid at A site. Now since peptide bond has already been formed tRNA at P site is useless so it has to be expelled from the initiation complex via exit site. As soon as this tRNA is expelled, the tRNA which was at A site translocates into P site so that a new tRNA charged with another amino acid could enter the A site for further elongation of peptide chain.

You might be interested in
What is the difference between an endocrine and an exocrine gland?
Masja [62]

Answer:

The difference between an Endocrine and an Exocrine Gland is that Exocrine Gland are those glands that pour their product of secretion to the outside of the body ( have secretion channels) and Endocrine Glands are those that pour their product of secretion (hormones) into the bloodstream ( have no secretion channels).

Explanation:

The glands are structures that can be constituted by one or several cells, and that are formed from epithelial tissue. Their function is to secrete various substances, such as hormones, and they are classified as endocrine and exocrine, according to the place where they discharge their secretions.

The Endocrine Glands are very vascular structures, that is, irrigated by a large network of blood capillaries, thin and porous walls. These glands produce hormones that are poured directly into the bloodstream and transported by the blood vessels to the target tissues, where they come to perform their function. According to the chemical nature of the hormones produced by the endocrine glands, the organelles of the cells that constitute them can reach different degrees of development. For example the pancreas secretes insulin, which allows the body to regulate blood sugar levels.

The Exocrine Glands secrete substances through ducts directed to the surface of the body or to the interior of some organs. For example, exocrine glands are mucus-producing goblet cells, present in mucosal epithelia such as the lining of the intestine, and the sweat, sebaceous, and mammary glands. Tears are also produced by exocrine glands.

7 0
4 years ago
Which type of selection is illustrated by these two graphs?
Bess [88]
The first one would be A i believe, second one would be B and third is D
3 0
3 years ago
12) What is a region's average conditions over a long period of time? (Precipitation, Wind,
frutty [35]
A it’s climate hope that helps !
5 0
4 years ago
Read 2 more answers
Herbicides are chemicals that kill plants by interrupting important biological processes. Different herbicides affect different
nika2105 [10]

Answer:

oxygen because that's one of the substance that plants produce.

You can also do this by the process of elimination. Knowing that atrazine impedes the production of substances in plants, we know that it can't be DNA and Phospholipid. Carbon Dioxide is used by plant, not produced; thus, oxygen is the answer.

7 0
3 years ago
What correctly shows the stages of cell division in plant body cells?
Dmitrij [34]
Mitosis- when a single cell divides to make two genetically identical "daughter cells"

This method helps that body produce new cells for both growth and repair for aging or damaged tissues throughout the body
7 0
4 years ago
Read 2 more answers
Other questions:
  • Describe where in the cell starch grains are found.
    5·1 answer
  • What are the two main types of bone tissue?
    13·1 answer
  • fungi may grow on and destroy healthy leaves of many tropical plants what does it symbolize? answers are / predation parasitism
    14·1 answer
  • Which type of molecule includes an example with a long-chain carbon backbone
    10·1 answer
  • What do all cells need in order to perform cellular respiration?
    8·2 answers
  • Mrs. Humphries has a small garden. She planted tomatoes, zuccinni, onion, garlic and beans (legumes). When summer is over and sh
    11·1 answer
  • Why is it necessary for the DNA to make a copy of itse
    15·1 answer
  • Which change in the climate of New York State would most likely cause the greatest increase in chemical weathering of local bedr
    8·1 answer
  • Answer this question plz I am confused is it A,B,C or D
    6·1 answer
  • Select the correct answer.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!