Question 1

Which of the following is not associated with tRNA?&#10;A)transfer of amino acids&#10;B)anticodon loop&#10;C)cloverleaf appearance&#10;D)type of RNA translated into protein

Accepted Answer

tRNA is directly involved in the transfer of amino acids during protein synthesis and has a distinct cloverleaf appearance with an anticodon loop that recognizes specific codons on mRNA. However, it is not the type of RNA that is translated into protein. That role belongs to mRNA.

Question 2

The anticodon of the tRNA is complementary to the codon on mRNA.

Accepted Answer

The anticodon sequence on the tRNA is complementary to the codon sequence on the mRNA, which allows for correct pairing of the amino acid on the tRNA to the codon on the mRNA during protein synthesis.

Question 3

Translation occurs in the of eukaryotes.&#10;A)cytoplasm&#10;B)nucleus&#10;C)lysosomes&#10;D)Golgi complexes

Accepted Answer

Translation, which is the process of protein synthesis, occurs in the cytoplasm of eukaryotic cells. This is where ribosomes, the cellular structures that facilitate translation, are located in these cells.

Question 4

A triplet of three nucleotides found on the DNA or mRNA that codes for one amino acid is called a/an .&#10;A)anticodon&#10;B)codon&#10;C)trio&#10;D)peptide

Accepted Answer

A codon is a triplet of three nucleotides found on DNA or mRNA that codes for one amino acid. The other options are not related to the coding of amino acids. An anticodon is a triplet of three nucleotides found on transfer RNA (tRNA) that binds to the complementary codon on mRNA during translation. Trio and peptide are not related to genetic coding.

Question 5

Which types of RNA are never translated?&#10;A)tRNA and rRNA&#10;B)mRNA only&#10;C)tRNA and mRNA&#10;D)all types of RNA are translated

Accepted Answer

The answer of Which types of RNA are never translated?&#10;A)tRNA...

Question 6

How many different types of amino acids are there in proteins?&#10;A)1&#10;B)3&#10;C)20&#10;D)50

Accepted Answer

There are 20 different types of amino acids that are found in proteins. These amino acids differ in the chemical properties of their side chains, which can affect the overall structure and function of the protein.

Question 7

Which of the following is not a stop codon?&#10;A)AUG&#10;B)UAA&#10;C)UAG&#10;D)UGA

Accepted Answer

AUG is the start codon for translation, not a stop codon. The three stop codons are UAA, UAG, and UGA.

Question 8

The enzyme that links the appropriate amino acid to the acceptor stem of specific tRNAs is called .&#10;A)aminoacyl tRNA synthetase&#10;B)ribosomes&#10;C)ribozymes&#10;D)ribonuclease P

Accepted Answer

Aminoacyl tRNA synthetase is the enzyme responsible for attaching the correct amino acid to the correct tRNA molecule. This process is essential for proper translation of the mRNA into a polypeptide chain.

Question 9

The transmission of information from messenger RNA to protein is called .&#10;A)translocation&#10;B)transformation&#10;C)transcription&#10;D)translation

Accepted Answer

The process of translating the information encoded in messenger RNA into a chain of amino acids that makes up a protein is called translation. This process occurs on ribosomes in the cytoplasm and involves the use of transfer RNA molecules to match the codons on the mRNA with the appropriate amino acids. Translocation refers to the movement of molecules or structures from one location to another within a cell or organism, transformation refers to a change in the genetic makeup of a cell, and transcription refers specifically to the synthesis of messenger RNA from a DNA template.

Question 10

The RNA type that brings amino acids to the protein synthesis machinery is .&#10;A)mRNA&#10;B)rRNA&#10;C)snRNA&#10;D)tRNA

Accepted Answer

tRNA (transfer RNA) brings amino acids to the protein synthesis machinery, specifically to the ribosome, where they are incorporated into a growing polypeptide chain. This process requires the complementary base-pairing between the codon on the mRNA and the anticodon on the tRNA. Therefore, tRNA plays a crucial role in the accuracy and efficiency of protein synthesis.

Question 11

Release factors .&#10;A)help terminate transcription&#10;B)help terminate translation&#10;C)help the ribosome to release uncharged tRNA molecules&#10;D)help the ribosome release the amino acids on the charged tRNAs

Accepted Answer

The answer of Release factors .&#10;A)help terminate transcription&#10;B)help terminate translation&#10;C)help...

Question 12

The type of covalent bond that forms between adjacent protein monomers is called a .&#10;A)beta-linkage&#10;B)phosphodiester bond&#10;C)peptide bond&#10;D)glycosidic bond

Accepted Answer

The answer of The type of covalent bond that forms...

Deck 13: Protein Synthesis