Trna Studienführer, Klassennotizen & Zusammenfassungen

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...

Final exam Straighter line microbiology 100% SOLUTION 2023//2024 In the nitrogen cycle, which of the following steps involves removal of nitrogen from the atmosphere by bacteria? - ANSWER Nitrogen Fixation If enough H+ ions are added to pure water to raise the H+ concentration of the solution to ten times higher than the original concentration, what is the resulting OHconcentration of the solution? - ANSWER 10-8 M Fungi are able to reproduce asexually by creating conidiospores and spo...

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+ 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...

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...

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?...

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 ...

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?...

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.)