Trna Study guides, Class notes & Summaries
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AQA AS BIOLOGY Paper 1 FOR MAY 2023
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AQA 
 
 
 
 
AS 
BIOLOGY 
Paper 1 
 
Monday 15 May 2023	Morning	Time allowed: 1 hour 30 minutes 
Materials 
For this paper you must have: 
•	a ruler with millimetre measurements 
•	a scientific calculator. 
 
Instructions 
•	Use black ink or black ball-point pen. 
•	Fill in the boxes at the top of this page. 
•	Answer all questions. 
•	You must answer the questions in the spaces provided. Do not write outside the box around each page or on blank pages. 
•	If you need extra space fo...
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers
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WGU Biochemistry OA (Latest 2022/2023) Verified Answers 
Bohr Effect chart (low pH) 
C- High CO2 
H- High H+ 
A- Acidic 
R-Release of O2(rt. Shift) 
T- tense state (in tissues) 
 
 
Primary structure 
Sequence of amino acids that make up a protein 
 
 
Secondary Structure 
Sequence of amino acids fold. 
 
 
Tertiary Structure 
-more folding in a 3D shape. 
-R groups (side chains) 
 
 
Quaternary Structure 
Protein has more than 1 polypeptide chain. 
 
 
Chemical reaction 
-absorb and release en...
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MATERNAL NEWBORN | MATRNITY & PEDIATRICS EXAM ACTUAL QUESTIONS CORRECTLY ANSWERED | ALREADY PASSED
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MATERNAL NEWBORN | MATRNITY & 
PEDIATRICS EXAM ACTUAL QUESTIONS 
CORRECTLY ANSWERED | ALREADY 
PASSED
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AQA A-Level Biology Paper 1 2023 Q&A
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Describe the role of a ribosome in the production of a polypeptide. /3 - Correct answer1. mRNA binds to ribosome; 
2. Idea of TWO codons/binding sites; 
3. tRNA with ANTICODONS binds; 
4. (Catalyses) formation of PEPTIDE bond between AMINO ACIDS (held by tRNA 
molecules); 
5. Moves along (mRNA to the next 
codon); 
Describe the structure of glycogen. /2 - Correct answer-1. Polysaccharide of α-glucose; 
OR 
polymer of α-glucose; 
2. (Joined by) glycosidic bonds 
OR 
Branched structure; 
NHE3 ac...
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BIO 1A03 McMaster University Test 2 Review Graded A+
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BIO 1A03 McMaster University Test 2 Review Graded A+ Translation Cellular components are able to read the genetic message in mRNA and translate the message into specific primary amino acid sequence of a protein 
How does tRNA structure allow for SPECIFICTY in translation? 1. Plays critical role in ENABLING the translation of the information 2. Each type of tRNA molecule is not identical and can translate a specific codon into a specific amino acid 
What is the structure of tRNA? - single RNA str...
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bio exam 4 (chap 25 & 36) Questions With Complete Solutions
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where does transcription occur correct answer: nucleus (of eukaryotes) 
 
where does translation occur correct answer: the cytoplasm 
 
3 steps in translation correct answer: 1. initiation 
2. elongation 
3. termination 
 
initation correct answer: - Brings all the translation components together 
- Initiation factors assemble ribosome components 
- Small ribosomal subunit, initiator tRNA, and the large ribosomal subunit 
- The initiator tRNA attaches to the start codon (AUG) 
- The ribosome...
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BIO 220 Final Exam 2023/2024 with 100% correct answers
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A spiral shape constituting one form of the secondary structure of proteins, arising from a specific hydrogen-bonding structure. - correct answer alpha helix 
 
One form of the secondary structure of proteins in which the polypeptide chain folds back and forth, or where two regions of the chain lie parallel to each other and are held together by hydrogen bonds. - correct answer beta sheet 
 
In a polypeptide chain, the first amino acid has an exposed _______ - correct answer amino group 
 ...
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ASCP Technologist in Molecular Biology board exam prep with complete solution 2023/2024
- Exam (elaborations) • 28 pages • 2023
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ASCP Technologist in Molecular Biology board exam prep with complete solution 2023/2024 
 
Pyrimidine 
One carbon ring 
Cytosine, Thymine, Uracil 
Purine 
Two carbon rings 
Adenine, Guanine 
How are nucleotides joined together? 
Condensation to form phosphodiester bond 
What is the function of mRNA? 
Carries genetic info out of nucleus 
Transcript translated to protein 
What is the function of tRNA? 
Carries aa to ribosome 
Anticodon pairs with codon on mRNA strand 
What is the function of rRNA?...
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TEST BANK FOR Campbell Biology 9th Edition Glossary A+GRADED
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5′ cap - A modified form of guanine nucleotide added onto the 5′ end of a pre-mRNA molecule. A site - One of a ribosome's three binding sites for tRNA during translation. The A site holds the tRNA carrying the next amino acid to be added to the polypeptide chain. (A stands for aminoacyl tRNA.)
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ASCP Technologist in Molecular Biology board exam prep with complete solution 2023/2024
- Exam (elaborations) • 28 pages • 2023
- Available in package deal
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ASCP Technologist in Molecular Biology board exam prep with complete solution 2023/2024 
 
Pyrimidine 
One carbon ring 
Cytosine, Thymine, Uracil 
Purine 
Two carbon rings 
Adenine, Guanine 
How are nucleotides joined together? 
Condensation to form phosphodiester bond 
What is the function of mRNA? 
Carries genetic info out of nucleus 
Transcript translated to protein 
What is the function of tRNA? 
Carries aa to ribosome 
Anticodon pairs with codon on mRNA strand 
What is the function of rRNA?...
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