During initiation of protein synthesis,  A. methionyl-tRNA appears at the A site of the 80S initiation complex. B. eIF3 and the 40S ribosomal subunit participate in forming a preinitiation complex . C. eIF2 is phosphorylated by GTP . D. the same methionyl-tRNA is used as is used during elongation . E. a complex of mRNA, 60S ribosomal subunit, and certain initiation factors is formed.

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A: Part g: There are several chemical and structural similarities between the amino acids Ile…

Q: -up) genes, which Question #1: The diagram below depicts the regulatory regions for contain…

A: The gene has cis-regulatory sequences, to which the transcription factors bind and will control the…

Q: QUESTION 10 The image below represents a stage in the translation elongation cycle. H2N A) What has…

A: Protein synthesis:  It is mediated by ribosome -peptide formation between amino acids. In protein…

Q: Question 17 The initial step in the formation of an aminoacyl-TRNA is A interaction of the MRNA with…

A: Aminoacyl-tRNA An enzyme called aminoacyl-tRNA synthetase which helps in attaching the amino acid…

Q: Amino acids are covalently attached at site 3'A and A-OH MRNA binds to site ES А. В, С

A: Amino acids are the building blocks of proteins. Amino acids are linked by peptide bonds to form a…

Q: QUESTION 9 After formation of the preinitiation complex in eukaryotes, transcription begins after:…

A: C is correct because RNA polymerase holoenzyme is made up of sigma factor along with RNA Polymerase,…

Q: QUESTION 4 In order to produce mRNA vaccine for COVID19, the DNA encoding the SARS-CoV-2 spike…

A: Designing a primer for amplification of target DNA is an important aspect of primer designing.…

Q: Question 26 The initial event in the conversion of an hnRNA to the mature RNA which leaves the…

A: Answer is D

Q: (A) involves the formation of a peptide bond between the amino acid and tRNA

A:

Q: The eukaryotic transcription factor that exhibits a sequence specificity for the TATA box is: A)…

A: Transcription is the first step in the gene expression which transfers the genetic information…

Q: Question 13 If DNA fragments of about 1 kb is to be cloned, which vector would be most useful? A…

A: Vector: In molecular biology, a vector is a DNA molecule used as a tool to transfer foreign genetic…

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A: Base excision repair (BER) corrects lesions in the base that don't significantly distort the DNA…

Q: QUESTION NO. 1  Fragile X syndrome is a common form of inherited mental retardation. The mutation in…

A: Since you have asked multiple question, we will solve the first question for you. If youwant any…

Q: During initiation of translation which type of hybrid is formed first?

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Q: Which of the following is required for RNA splicing to occur?

A: RNA splicing is the process in which newly made precursor m-RNA is transferred into a mature mRNA.

Q: recognition of the AUG initiation codon in an mRNA is TRUE?

A: In eukaryotes and Archaea, the start codon always codes for methionine, while in bacteria,…

Q: Queștion 1: The protein Collagen alpha-1 has 1671 amino acids. From start to stop codon, how long…

A:

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A: mRNA is the transcribed molecule using DNA as a template. In prokaryotes, mRNA is transcribed in the…

Q: Post-transcriptional modifications in eukaryotic RNAS A. addition of CCA at the 5'end of the TRNA…

A: Post transcriptional modification is a process in eukaryotic cells by which newly synthesis RNA…

Q: Review translation. Match the term and its description. Each term can only be used once. transfer…

A: Hi, Thanks For Your Question.   transfer amino acids to the growing polypeptide in a ribosome…

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A: a. chromosomes are genetic structures present inside nucleus composed of DNA tightly coiled around…

Q: Question 9 Expression of genes independently of regulation is termed: A repressible regulation. B…

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Q: Question 29 Expression of genes independently of regulation is termed: A constitutive expression. (B…

A: Ans 29  - the correct answer of the above question is B) AUTOREGULATION. Expression of genes…

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A: Introduction:: The correct choice is option (b).

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Q: Question 33 RNA polymerase II: A is located in the nucleoplasm and transcribes the protein-encoding…

A: Transcription is the process which is required for formation of mRNA from template strand of DNA.

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A: Ribonucleic acid (RNA) is a significant organic macromolecule that is available in all natural…

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Q: Question 30 Which of the following does not require GTP hydrolysis? A all of the above require GTP…

A: Answer--- correct option is (A) All of the above require GTP hydrolysis

Q: Question 29 A DNA sequence is transcribed in both males and females, but only translated in males.…

A: Transcription is the process by which genetic information stored in DNA is converted into RNA. It…

Q: Queștion 2: The protein Collagen alpha-1 has 1671 amino acids. How many codons must have been read…

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Q: Choose best match of the events that occur during translation with their locations in the E. coli…

A: Translation is the process by which the genetic code on messenger RNA (mRNA) molecules is decoded to…

Q: The presence of lactose in E.coli triggers the transcription of Lactose Operon. O True O False

A: Operons can be defined as the gene regulatory system present in a prokaryotic organism. Operons…

Q: QUESTION 19 The role of primase at the replication fork is to... O A. decatenate (unknot) DNA B. O…

A: Replication is the process of making of daughter DNA from the parental DNA.

Q: QUESTION 12 Which of the following is NOT a step in the formation of LTRS? A. Binding of a tRNA…

A: Introduction LTR is A polynucleotide sequence found at each end of an integrated retrovirus genome…

Q: Question 5. What is the effect on a target mRNA when it is silenced by a miRNA that has a complete…

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Q: Question 40 Which of the following is not a key step in the activation of MRNA synthesis in…

A: Ans- In eukaryotes, mRNA is synthesized in the nucleus during transcription in which the single DNA…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.