Docsity
Docsity

Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity


Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan


Guidelines and tips
Guidelines and tips

PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025-2026 TOP SCORE COMPREHENSIVE QUESTIO, Exams of Biology

PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025-2026 TOP SCORE COMPREHENSIVE QUESTIONS WITH 100% CERTIFIED, ELABORATED & VERIFIED SOLUTIONS, ACE YOUR EXAMS- DEFINITE SUCCESS!!! 'A' is transcription and 'B' is translation. DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis Crick described the central dogma of molecular biology explaining the process of gene expression. What do A and B represent in the image? DNA has no hydroxyl group on the second carbon.

Typology: Exams

2024/2025

Available from 07/03/2025

NURSE-GENIUS
NURSE-GENIUS 🇺🇸

2K documents

1 / 5

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025-2026
TOP SCORE COMPREHENSIVE QUESTIONS WITH 100% CERTIFIED,
ELABORATED & VERIFIED SOLUTIONS, ACE YOUR EXAMS- DEFINITE
SUCCESS!!!
'A' is transcription and 'B' is translation.
DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis
Crick described the central dogma of molecular biology explaining the process of gene
expression. What do A and B represent in the image?
DNA has no hydroxyl group on the second carbon.
You can observe the main differences between DNA and RNA. Which statement is true?
C
The mRNA strand is synthesized in the 5' to 3' direction. The circles in the image indicate the
chemical group to which the next base is attached. Which image has the circle in the correct
position?
The position of a carbon atom in the sugar backbone
DNA and mRNA synthesis proceeds in the 5' to 3' direction. What do 5' and 3' refer to?
P
Protein synthesis is performed by an RNA-protein complex called the ribosome. As you can see
in the image, a ribosome is composed of 3 sites called E, P, and A. To which site does tRNA add
its amino acid to the polypeptide chain
Ribosomes, 2
Where do eukaryotic cells synthesize proteins and which number represents this organelle in
the image?
Codon
What is the name of each sequence of three nitrogen- containing bases of RNA that codes for
one amino acid?
The personnel, the experiment, and the environment
The biosafety cabinet is important for physical containment. In this lab we will use a biosafety
cabinet class II. Who or what does a level II biosafety cabinet protect?
pf3
pf4
pf5

Partial preview of the text

Download PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025-2026 TOP SCORE COMPREHENSIVE QUESTIO and more Exams Biology in PDF only on Docsity!

PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025- 2026

TOP SCORE COMPREHENSIVE QUESTIONS WITH 100% CERTIFIED,

ELABORATED & VERIFIED SOLUTIONS, ACE YOUR EXAMS- DEFINITE

SUCCESS!!!

'A' is transcription and 'B' is translation. DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis Crick described the central dogma of molecular biology explaining the process of gene expression. What do A and B represent in the image? DNA has no hydroxyl group on the second carbon. You can observe the main differences between DNA and RNA. Which statement is true? C The mRNA strand is synthesized in the 5' to 3' direction. The circles in the image indicate the chemical group to which the next base is attached. Which image has the circle in the correct position? The position of a carbon atom in the sugar backbone DNA and mRNA synthesis proceeds in the 5' to 3' direction. What do 5' and 3' refer to? P Protein synthesis is performed by an RNA-protein complex called the ribosome. As you can see in the image, a ribosome is composed of 3 sites called E, P, and A. To which site does tRNA add its amino acid to the polypeptide chain Ribosomes, 2 Where do eukaryotic cells synthesize proteins and which number represents this organelle in the image? Codon What is the name of each sequence of three nitrogen- containing bases of RNA that codes for one amino acid? The personnel, the experiment, and the environment The biosafety cabinet is important for physical containment. In this lab we will use a biosafety cabinet class II. Who or what does a level II biosafety cabinet protect?

5'-AGU

The tRNA shown in the diagram will be able to form a base-pair interaction with which mRNA? 5'-AGU Three types of RNA cooperate to perform translations NA? tRNA, mRNA, rRNA Three types of RNA cooperate to perform translation. A: Read codons and deliver the amino acids. B: Carry the genetic information from DNA. C: Catalyze the assembly of polypeptide chains. Which type of RNA matches the A, B, and C descriptions, respectively? Bottom Have a look at this simplified depiction of a DNA strand using the VIEW IMAGE button. Which strand is the template strand? 5' - AUU ACA AUG GGG GUG CAC GAA UGU CCU - 3' Which is the correct mRNA sequence resulting from the EPO gene transcription process? MGVHECP What is the correct amino acid translated from the resulting mRNA. 582 The erythropoietin protein is 193 amino acids long. With this information, how many nucleic acids are there in the mRNA including the initiator and terminator codons TGDR An EPO gene is 582 bp long. This is the downstream section of the coding sequence for the erythropoietin mRNA: '5 - ACA GGG GAC AGA UGA - 3' Downstream means near the 3' end, so notice that the first codon is not methionine. What is the correct amino acid sequence? peptide bonds Amino acids are linked by a specific type of covalent bond. The reaction of this bond produces one water molecule. This bond links multiple amino acids acids together, what is it called?

Based on the mass spectrometry result, the masses of rhEPO expressed in CHO and E. coli are 30 kDa and 18 kDa, respectively. We also know that the EPO preoteins expressed in mammalian cells are glycosylated. Therefore, we can say that what weight percentage of rhEPO expressed in CHO are polysaccharides. yes, erythropoietin is best expressed in mammalian cells. Are mammalian espression systems better than bacterial systems for the production of biologically active and stable erythropoietin? Mass and charge Mass spectrometry identifies molecules based on what? Matrix-assisted laser desorption/ionization. MALDI is an abbreviation for what? Predict the identity of an unknown protein. The macromolecule ionization method, such as MALDI MS, allows us to obtain a peptide mass fingerprint, or PMF, that can be used to do what? Y, Z, then X. If X, Y, and Z prefer to the parts of a mass spectrometer that perform different processes such that: X detects the number of different ions. Y is where ion production from the sample takes place. Z separates ions with different mass-to-charge ratios. In which order do X, Y, and Z occur? Ensures ionization of protein molecules. Protein samples are mixed with a matrix prior to analysis. What is the function of a matrix in MALDI MS analysis? II, III, and IV In mass spectrometry protein molecules are separated based on their mass to charge ratio. The data is recorded in a histogram for analysis. Which of these histograms are NOT coherent with the mass spectrometry principle? C Compare the sample results from each athlete with the control results. There are two controls:

  1. Positive control: contains rhEPO only.2. Negative control: only includes urine. No rhEPO in this control.Which athlete is using rhEPO? Use the buttons on the computer screen to analyze the graphs. Red blood cells EPO can increase production of energy (ATP) by increasing production of what?