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Which of the following statements about ribosomes is correct?

Which of the following statements about ribosomes is correct?

Protein synthesis (updated)

When a cell divides, one copy of its genetic information (in the form of DNA molecules) is created for each of the two daughter cells. Since the health and inherited characteristics of nascent cells are determined by the precision of these copies, it is critical that the DNA replication process be as precise as possible (Figure 1).
The double-helical structure of DNA is one element that aids in precise replication. The two strands of the DNA double helix, in particular, are made up of nucleotide combinations of molecules. Adenine (A), thymine (T), cytosine (C), and guanine (G) are the four nucleotides that make up DNA. Each one is named for the nitrogenous base it contains. Furthermore, the nucleotides that make up one strand of the DNA double helix often pair up with the nucleotides that make up the other strand in a sequence known as complementary base-pairing — A always pairs with T, and C always pairs with G. (Figure 2). The paired strands unravel during cell division, and each strand serves as a template for the synthesis of a new complementary strand.

Protein synthesis | cells | biology | fuseschool

The correct response is translation, which is the process of translating an mRNA codon sequence into protein through the ribosome. Apoptosis is the death of a cell that has been programmed. Transcription is similar, but it refers to the method of converting DNA into RNA. Glycolysis is the mechanism of converting glucose into two pyruvate molecules and two ATP molecules.
Explanation: Each codon is made up of three RNA nucleobases and codes for a single amino acid; however, one amino acid can be coded by multiple codons. The start codon, AUG, indicates the start of translation and codes for the amino acid methionine.
Explanation: Although there is only one start codon (AUG), there are three separate stop codons (UGA, UAG, and UAA) that each signal the completion of translation. tRNA is used to carry amino acids (corresponding to the codons in the mRNA sequence) to the ribosome during translation, where they are attached through peptide bonds to form a polypeptide.
Explanation: The genetic code is degenerative, which means that the same amino acid can be coded by different codons. It’s also unmistakable: each codon will only code for one amino acid. However, it would be incorrect to say that an amino acid has only one codon, as an amino acid may have several codons that code for it.

Mrna translation (advanced)

Option (c) is the correct answer. Choice (a) is incorrect since, although uracil is present in RNA, it pairs with adenine rather than cytosine. Since RNA may form base pairs with a complementary RNA or DNA sequence, option (b) is false. Since ribose has one more oxygen atom than deoxyribose, option (d) is incorrect.
Option (d) is the correct answer. Choice (a) is incorrect since an RNA transcript is generated by a single polymerase molecule that travels from start to finish without stopping. While an RNA polymerase is used to make primers during DNA synthesis, it is a different enzyme called primase, which is not the same as the one used for transcription, which is why option (b) is incorrect. Option (c) is incorrect.
Option (d) is the correct answer. Choice (a) is right, but it is not the primary explanation for the fact that different RNA molecules can shape different three-dimensional structures (although ribose does increase potential hydrogen-bonding potentials compared to deoxyribose). Option (b) and (c) are incorrect.
Option (a) is the correct answer. Choices (b) and (c) have no intramolecular base-pairing opportunities, so a particular structure is impossible. While choice (d) has some intramolecular base-pairing potential, choice (a) has significantly more intrastrand complementarity and is therefore a better choice.

Which of the following statement is correct regarding ribosomes

A. This is right. Ribosomes are the structures responsible for converting mRNA into protein. False. B. 8 or more hydrophobic amino acids are found in signal sequences that guide proteins to the ER. C. This is right. This aids proper docking at the target membrane. True, D. True, E. The trans-golgi network selects lysosomal proteins and packages them into transport vesicles that carry them to endosomes. True. False. False. False. False. Fal Lysosomes also digest internal organelles through a mechanism known as autophagy. False. G. Mitochondria are not involved in the transport of vesicles.
A material that cannot be broken down into a simpler substance by chemical means is referred to as an element in chemistry and physics. A pure element is a material made up of just one kind of atom, the chemical properties of which are determined by the atomic number of that atom, which is the number of protons in its nucleus. Carbon, oxygen, aluminum, iron, gold, copper, mercury, and lead are examples of elements.
A material that cannot be broken down into a simpler substance by chemical means is referred to as an element in chemistry and physics. A pure element is a material made up of just one kind of atom, the chemical properties of which are determined by the atomic number of that atom, which is the number of protons in its nucleus. Carbon, oxygen, aluminum, iron, gold, copper, mercury, and lead are examples of elements.