Q1: On the ribosome, the mRNA is read from 5' to 3' in a series of three nucleotides called codons. Q2: Which of the following features of eukaryotic ribosomes in translation initiation is FALSE? a. It uses an initiator tRNA that carries a methionine. b. The large subunit of the ribosome is important for binding to the mRNA. c. The large and small subunits of the ribosome combine once the initiation complex recognizes the AUG start codon. Q3: Which of the following methods is NOT used by eukaryotic cells to regulate the amount of protein in the cell? a. Operons b. Riboswitches c. miRNAs
Added by Jamie A.
Step 1
Step 1: The mRNA is read from 5' to 3' in a series of three nucleotides called codons. Show more…
Show all steps
Your feedback will help us improve your experience
Md.Daniyal Arshad and 63 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
1. What is the first step in the initiation of translation in bacteria? a. The small subunit of the ribosome binds to the ribosome binding site on the mRNA molecule. b. The ribosome binds to the initiation codon on the mRNA molecule. c. The large subunit of the ribosome binds to the ribosome binding site on the mRNA molecule. 2. How is protein synthesis terminated? a. A release factor recognizes the termination codon and enters the A site. b. a tRNA for the termination codon enters the P site. c. a tRNA for the termination codon enters the A site. 3. Which of the following is NOT a reason why proteins require assistance in folding during translation or following denaturation? a. During translation, the partially translated protein is a random coil, unable to fold into any specific conformation. b. After denaturation, proteins may form insoluble aggregates caused by an inability to shield their hydrophobic groups from water. c. During translation, partially translated proteins might begin to fold incorrectly before the entire protein is synthesized.
Katlin K.
What is the main function of tRNA in relation to protein synthesis? a. inhibits protein synthesis b. proofreading c. identifies amino acids and transports them to the ribosome d. all of these 2. Translation is the process where a. mRNA is created in the nucleus b. glucose molecules are made c. mRNA is decoded to form a protein d. is where lipids are synthesized 3. What is an anticodon? a. the part of an mRNA that signals translation termination b. the part of an mRNA that signals the start of translation c. the part of a tRNA that binds to a codon in mRNA d. the part of a tRNA that accepts an amino acid, via a reaction catalyzed by tRNA synthetase 4. Alternative splicing refers to a. the use of introns as exons, or vice versa, during RNA processing b. splicing out of damaged DNA by DNA repair enzymes c. joining of RNA from two different genes to form a new mRNA d. the use of alternative reading frames when translating an mRNA
Sri K.
What are the four types and functions of RNA? a. $\mathrm{mRNA}$ is a single stranded transcript of DNA. rRNA is found in ribosomes. tRNA transfers specific amino acids to a developing protein strand. miRNA regulates the expression of mRNA strands. b. $\mathrm{mRNA}$ is a single stranded transcript of rRNA. rRNA is translated in ribosomes to make proteins. tRNA transfers specific amino acids to a developing protein strand. microRNA (miRNA) regulates the expression of the mRNA strand. c. $\mathrm{mRN}$ A regulates the expression of the miRNA strand. $\mathrm{RNA}$ are found in ribosomes. tRNA transfers specific amino acids to a developing d. $\mathrm{mRNA}$ is a single stranded transcript of DNA. rRNA transfers specific amino acids to a developing protein strand. tRNA is found in ribosomes. miRNA regulates the expression of the mRNA strand.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD