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myrzilka [38]
3 years ago
13

Protein synthesis is the main function of which of the following structures? (A) Nucleus (B) Ribosome (C) Chromosome (D) Mitocho

ndrion (E) Vacuole
Biology
2 answers:
Mars2501 [29]3 years ago
8 0

Answer:

B. Ribosome

Explanation:

Ribosomes are the organelles that serve as a site for protein synthesis. Each ribosome has two subunits. The small subunit first joins with mRNA and the initiator tRNA to start the process of protein synthesis. The large subunit joins the complex and the proteins are synthesized according to the nucleotide sequence of the mRNA read in the form of genetic triplets. Ribosomes are present in cytosol as well as on the surface of the rough endoplasmic reticulum of a eukaryotic cell. In both locations, they are involved in the process of protein synthesis.

maw [93]3 years ago
6 0

Answer:

(B) Ribosome

Explanation:

The ribosome is an organelle composed of RNA proteins and the ribosomal RNA. The proteins and rRNA form the two subunits: the small and large subunit. The ribosomes either attached to the endoplasmic reticulum or float freely in the cytoplasm of the cell.

The structure of RNA contains three sites called A, P and E sites which helps in the "synthesis of proteins" from the mRNA molecule. The mRNA produced in the nucleus gets transported from the nucleus to the ribosomes attached to the endoplasmic reticulum and the proteins are synthesized by the process of translation.

Thus, Option-B is the correct answer.

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Answer:

the moon is a planet

Explanation:

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8 0
3 years ago
3) What is the density of a rock with a volume of 4 cm3 (cubed) and a mass of 12 grams?
Bogdan [553]

Answer:

C) 3 g/cm3

Explanation:

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3 0
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What part pf the brain regulates stress?
borishaifa [10]
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5 0
3 years ago
Which process occurs during meiosis that contributes to a gamete having unique material
Oxana [17]
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4 0
3 years ago
1 Populations that show uniform dispersion typically show the following characteristics EXCEPT:
professor190 [17]

1. Answer: C

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2. Answer: B

Explanation: While the clumped up populations may be inclined to cooperate in tasks such as food gathering, such distribution results to increases intraspecies competition especially during scarcity. This is because the individuals are close together – which is also advantageous during mating season.

3. Answer: A

Explanation: Type 3 survivorship curve is characterized by a high mortality rate early in the life of the species which gradually progresses to a low mortality rate for the individuals that survive the early stages of life. These species, therefore, bear a lot of offspring most of which will not make to adulthood.

4. Answer: B

Explanation: If the death rate of a population is higher than the birth+ immigration rate, then the population must be decreasing. This can be demonstrated by a growth curve of a population such as that of bacteria. The population starts decreasing due to increased competition for reduced resources after reaching carrying capacity  - depicted by the stationary phase.

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