Identify the single most correct answer: a) Operator is the site on "a mRNA" which is recognized by a repressor. b) Anticodon is an antibody against genetic diseases. c) Shine-Dalgarno (SD) sequence is a sequence on 16S rRNA. d) None of the above.

Q: Which of the following may be found in both a genomic and CDNA library? intron sequence promoter…

A: A genomic library contains DNA fragments that represents the complete genome of an organism. On the…

Q: A silent mutation and a missense mutation can both result from

A: Transition mutation refers to a point mutation that changes a purine nucleotide to another purine (A…

Q: O c) Frameshift mutation

A:

Q: The -35 and-10 consensus sequences upstream from the transcription start site are A) O located in…

A: Transcription is the process of formation of mRNA (messenger ribonucleic acid) from the DNA…

Q: The lac operon is an example of ________ control in which the presence of an ________ is required…

A: lac operon is present in E.coli and it produce the enzymes which are required for the lactose…

Q: In Eukaryotes the following are areas of the gene that contain amino acid sequences information A)…

A: Amino acid sequences means the production of proteins. It is the DNA which dictates the formation of…

Q: Transformation: A) O is the process by which a bacterium converts genetic information into a protein…

A: Prokaryotes are the single celled organisms (unicellular) and are the simplest form, which do not…

Q: My Avya mouse is brownish because a) the CpG island with the transposon is unmethylated. b) it was…

A: Epigenetic systems that facilitate gene-environment interactions are involved in the ability of…

Q: 1. a)What would happen if the aminoacyl tRNA synthetase responsible for charging alanine tRNAs also…

A: The polymerization of amino acids according to the codons on mRNA to form proteins is known as…

Q: Gene splicing all are true except a) Complete removal of introns b) Histone mRNAs do not undergo…

A: Splicing is a process of removal of introns (non coding regions). It allows synthesis of many…

Q: what is a good response to this answer? I selected influenza for my portfolio project. The United…

A: Approach to solving the question: Detailed explanation: Examples: Key references: Health Science

Q: Usually, bacteria only make tryptophan when tryptophan is absent or available in low concentration.…

A: Normally, bacteria regulate the synthesis of tryptophan through the trp operon. When tryptophan…

Q: 1.The -glycosidic bond in uridine phosphate exist between a) C1 of ribose and N9 of uracil b) C3 of…

A: 1. The glycosidic linkage involves c-1 of sugar and the hydrogen atom of N-1 in uracil 2 Promoters…

Q: Which of the following is a mechanism to imprint genes? O A) Methylation of cytosine B)…

A: The epigenetic modifications involves DNA methylation. By this process the expression of genes…

Q: a piece of DNA is produced with  1) an enhancer from a gene expressed in the liver, 2) a promoter…

A: Given: A piece of DNA is produced with 1) an enhancer from a gene expressed in the liver, 2) a…

Q: If a gene sequence is more tightly coiled around histones, then which of the following is the most…

A: When DNA or gene sequence is strongly attached to histones, however, transcription factors and RNA…

Q: HIV infection can be interrupted before integration into a chromosome by a) a termination tRNA is…

A: The human immunodeficiency virus (HIV) is a virus that is the causative agent of Acquired…

Q: Where does RNA polymerase bind DNA?a) Promoterb) Operatorc) Enhancerd) None

A: The DNA is the genetic material that is passed from one generation to the next generation. It is…

Q: Gene expression in bacteria is controlled by the operon model.  a) Why is the operon model…

A: BASIC INFORMATION  OPERON MODEL  This model of gene regulation was put forward by Francis Jacob and…

Q: Which of the following is true about the HesC gene? Choose all possible answe a) repressed by the…

A: Hematopoietic Stem Cells (HSCs) are the main cells inside the hematopoietic system that have the…

Q: TBP stands for?a) TATA box polymeraseb) TATA-box binding proteinc) Transcription associated factord)…

A: TBP is a type of a protein that helps in the process of transcription. Transcription is the process…

Q: Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an…

A: Transcription factors are the class of nuclear proteins that facilitate transcription. It is studied…

Q: In eukaryotic cells, alternative splicing of the pre-mRNA (primary transcript) to form different…

A: The correct option is B i e, post- transcriptional modification.  Explanation:.…

Q: Centers of transcriptional repression that are usually associated with lamina or found around…

A: Barr bodies are transcriptionally repressed centers meaning that most genes on the inactivated X…

Q: Which of the following is not true of cDNA produced usinghuman brain tissue as the starting…

A: Introduction  Central Dogma: it is the key mechanism by which DNA can be transcribed into mRNA by…

Q: A TATA box (core promoter) is ____________. Group of answer choices a) None of the above b)…

A: ANSWER;- a) None of the above Explain;- A TATA box is a sequence of DNA found in the core promoter…

Q: Which of the following introns have self-splicing activity?a) Group I and group IIb) Group II and…

A: An intron is a nucleotide sequence present within a gene which is removed by RNA splicing before…

Q: Which of the following statements concerning the sequence of events involved in the initiation of…

A: Transcription is a process in which RNA transcript is formed from the DNA with the help of RNA…

Q: If an anticodon has the sequence 5' CGA 3' then the corresponding codon has the sequence A) 5' UCG…

A: A codon is a three-nucleotide (base) sequence found in messenger RNA (mRNA). Each codon either…

Q: 15) Which of the following can disrupt gene expression? A) microRNAs B) a repressor protein C) mTORS…

A: Explanation: 15) Option a: By forming a binding complex with messenger RNA (mRNA) in the cell…

Q: 1)Which of the following would represent mRNA for the above minigene? a.) AUG CGC GUU CCC GUG UAA…

A: The mRNA is synthesized based on the template strand of the DNA, which is complementary to the…

Q: Inhibiting the reverse transcriptase of HIV is a common method for treating HIV infections. a) The…

A: HIV is an RNA virus which has reverse transcriptase enzyme that can convert the RNA to DNA.

Q: Rho independent terminators Select an answer and submit. For keyboard navigation, use the up/down…

A: Transcription is the process in which the RNA is formed out of the DNA. The process of transcription…

Q: Match the following terms related to transcription in eukaryotes (you may use terms more than once…

A: RNA polymerase (RNAP) is an enzyme that transcribes RNA using DNA as the template. In Eukaryotes…

Q: It was discovered that COVID19 RNA is a sense (+) strand. If the RNA sequence that codes for the 5…

A: A sense strand, also known as a coding strand, is a stretch of double-stranded DNA that carries the…

Q: With respect to recombinant vaccines, it is CORRECT to state that: * (Only one statement is correct)…

A: With respect to recombinant vaccines, it is CORRECT to state that: (a) Protein subunit vaccines are…

Q: Which of the following is a possible consequence of a mutation that introduces a premature stop…

A: The stop codons are the specific genetic codon that do not codes any amino acids during the…

Q: The E. coli genome contains approximately 4639 kb. (a) How many copies of the 6-bp recognition…

A: E.coli is a type of bacteria that normally lives in the intestine. It is also found in the gut of…

Q: a mutation in the gene encoding Dicer would most likely result in: A) a failure to break the H…

A: Dicer, also known as endoribonuclease Dicer or helicase with RNase motif, is an enzyme that in…

Q: Identify the single most correct choice: a) DNA replication is a non-conservative process. b)…

A: DNA or Deoxyribonucleic acid is the genetic material in most higher organisms. RNA is Ribonucleic…

Q: Figure 5 shows the lac operon structure in Escherichia coli.   a) Name structures P, Q and R. b)…

A: Lac operon  Lac operon or lactose operon l is a group of gene that is code for transportation and…

Q: Which of the following is not involved in the post transcriptional processing of t-RNA?a) Base…

A: Full name is tRNA is transfer RNA. It supplies amino acids to ribosome at the time of protein…

Q: 37. Which of the following motifs can be used to bind protein dimers? a.) helix-loop-helix b.) zinc…

A: Motif is nothing but a short conserved sequence pattern, which is associated with protein function…

Q: An operon that encodes enzymes that degrade ampicilin is most likely __________ . A) inducible B)…

A: Option A and B are the answer. An operon that encodes enzymes that degrade ampicilin is most likely…

Q: Which of the following is not involved in the post-transcriptional processing of t-RNA? a)…

A: a) Attachment of poly-A tail: Poly-A tails are typically added to the 3' end of eukaryotic mRNA…

Q: a variant of the SARS-CoV-2 virus has been found in brazil. this variant contains the mutation…

A: Amino acids are monomers that serve as the protein's building blocks. Amino acids share basic…

Q: A mutation takes place that switches a codon from ACG to ACA. What type of mutation is this? A)…

A: A mutation is a random change in the DNA sequence.

Mitochondrial Mutations

A mitochondrion is a cellular organelle that serves as the site for cellular respiration and energy production (ATP or Adenosine Triphosphate). It is a double-membrane-bound organelle and is only present in eukaryotic cells.