Which of these is the function of a poly (A) signal sequence? A. It adds the poly (A) tail to the 3' end of the mRNA BR codes for a sequence in eukaryotic transcripts that signals termination of transcription-10-35 nucleotides away C. It allows the 3' end of the mRNA to attach to the ribosome D is a sequence that codes for the hydrolysis of the RNA polymerase It adds a 7-methylguanosine cap to the 3' end of the mRNA

Q: Which of the following statements are true about eukaryotic mRNA?a. The sigma factor is essential…

A: Proteins within the human body are made up of a small chain of building blocks, which are termed as…

Q: Where is the start codon located?

A: A sequence of three nucleotides on the mRNA strand is known as the codon. Each codon codes for the…

Q: What would be the direct consequence to a cell of loss-of-function of Elongation Factor-Tu (EF-Tu)?…

A: EF-Tu is a highly conserved elongation factor in prokaryotes. It catalyzes the binding of tRNA…

Q: Imagine that mutations occurred in one of the inverted repeat sequences within the rho-independent…

A: Transcription is the primary step in the process of gene expression. The process of the conversion…

Q: Genetic expression involves transcription and translation. Match the structure or molecule to the…

A: Nucleic acids are a type of macromolecules present in the cell.

Q: . Show (on the image) 3 steps that must be taken to produce a mature mRNA molecule from this pre-…

A: The genetic material which is the DNA undergoes the process of replication to produce exact copies…

Q: A geneticist induces a mutation in eukaryote cells. The mutation results in an inability to form the…

A: Mutation results in alteration of a nucleotide sequence of DNA which caused due to the mistake in…

Q: If an MRNA is alternatively spliced, then different introns are removed from a pre-MRNA, producing…

A: Alternative splicing is the process of splicing different combinations of splice sites with a…

Q: Once a peptide bond has been formed between the amino acid attached to the TRNA in the P site and…

A: To find The process what occurs next once a peptide bond has been formed between the amino acid…

Q: What is the mechanism by which an RNA transcript can be used to silence expression of the same gene?…

A: Recombinant DNA technology (rDNA technology) is very helpful for analyzing the entire genome of a…

Q: What is an anticodon, and where are they found? O a. Anticodons are complementary to codons, and are…

A: The triplet codon is the fundamental component of the genetic code, where each three-nucleotide…

Q: Mature human insulin is synthesized from a single Gene but contains two polypeptide chains (A and B)…

A: Introduction Pancreas is a holocrine gland present in our body. It has both endocrine and exocrine…

Q: or s The diagram above illustrates the process of statement) Row А. B. C. D. i translation…

A: Translation is the process by which RNA is used to make proteins.Transcription is the process of…

Q: The insertion of a base in a coding sequence leads to a shift in the reading frame, which in most…

A: A frameshift mutation in the process, in which the addition of the bases in the nucleotide sequence,…

Q: What mRNA is transcribed from each DNA sequen а. 5'-GTTCTАС-3' 3'- -5' b. 5'-ATTTGAAA-3' 3'- -5' с.…

A: The method of constructing an RNA copy of a genetic sequence is known as transcription. That copy,…

Q: A mutation that substitutes a nucleotide sequence, such that in the MRNA transcript the original UAA…

A: mRNA serves as a template for the process of protein synthesis.

Q: 18. а. What type of division (equational or reductional) is exemplified by the anaphase chromosomal…

A: Dividing phase is a sub stage of a cell cycle which is followed by interphase. This phase is known…

Q: What is the function of the sigma subunit of prokaryotic RNA polymerase? a. It directs the…

A: Introduction:- Transcription is defined as the process of RNA synthesis. It uses one strand of DNA…

Q: B. Both involve binding of rho, but rho-independent termination requires conformational change on…

A: After binding to the newly formed RNA chain, ρ factor moves along the molecule in a 5'-3' direction…

Q: ollowing is the sequence of a segment of mRNA: CGA AAA GUU UUU What are the anticodons of the…

A: mRNA is the polymer of nucleotides formed by the process of transcription using the DNA template…

Q: Mutation of which of these sequences would have an effect on translational initiation?   A. 3’ UTR…

A: Introduction  Prokaryotic transcription is the process by which prokaryotic genetic material is…

Q: A peptide is produced in two different cells. The primary structure is the same in both cells, but…

A: Polyadenylation:Increases the stability of the mRNAIt is essential for translational…

Q: Which of the following type of solution has lower levels of solutes than the solution? Anisotonic O…

A: What is tonicity ? Tonicity is a relative term wherein the measure of non-entering solutes decides…

Q: Following is an mRNA sequence reported in data base. 5’ ACC AGA ATG ACC ATG GCA 3’ a) There are two…

A: Ribonucleic acid (RNA) also contains genetic material but rarely takes part in transferring the…

Q: Without using your textbook, determine what protein sequence would be translated from the mRNA…

A: DNA is the store house of genetic information. This information is in the form of nucleotide…

Q: Which enzyme adds the adenines to the 3' end of the pre-mRNA RNA Polymerase Poly(A) nuclease Poly(A)…

A: The process of addition of a poly (A) tail to the 3' end of the mRNA during its maturation is called…

Q: Which of the following is not a function of the 5’ cap and 3’ poly-A tail of a mature eukaryotic…

A: Introduction: RNA polymerase is an enzyme that copies DNA. The RNA polymerase binds to the promoter…

Q: Give one example of a prokaryotic system of gene expression that is more complicated (during…

A: Gene expression refers to the process by which the information stored in a gene is used to…

Q: Some events that take place in proteins synthesis are shown below: A. An enzyme reads the gene…

A: TRANSCRIPTION It is the process of transfer of sequence information from DNA  to RNA . The DNA…

Q: What is one function of the 5' cap in eukaryotic mRNA? Select one: a. It is involved in translation…

A: Transcription is the process in which the RNA is synthesised from the DNA that is present in the…

Q: o If the conserved -35 and -10 sequences found in a Prokaryotic promoter are moved 20 nucleotides…

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

Q: Consider the wobble rules listed in Table 15.2. An MRNA has the stop codon 5' UAA 3'. What TRNA…

A: Codon is a triplet of nucleotide base pairs.

Q: Suppose a mutant RNA polymerase Il is used that lacks one of the phosphorylation sites on the…

A: The production of RNA from the DNA template is known as transcription or gene expression. The main…

Q: Removing introns from pre-mRNA can result in different gene variants”- Briefly explain this…

A: In molecular biology, RNA splicing is a kind of RNA processing in which a newly synthesized…

Q: 55 __________________ assemble to form a spliceosome, the splicing machine that excises introns. A.…

A: Introduction Transcription is a process where mRNA is produced from DNA. After transcription mRNA…

Q: A nonsense mutation Select one: a. results in a larger protein being produced from the mutated gene…

A: Introduction :- There are a number of disorders known to be caused by nonsense mutations, including:…

Q: Select the events from eukaryotic transcription from the list below and list them below in order, by…

A: What is transcription? Transcription is the process where RNA is synthesized from DNA by the…

Q: Below is a diagram of charged tRNAs in the active site of the ribosome during translation of the…

A: Translation is the process of synthesis of protein. It takes place in the cytoplasm.

Q: a. Write the sequence of the MRNA synthesized from the upper strand. b. Indicate the 5'and 3'ends of…

A: Answer : a. Sequence of mRNA synthesized from the upper stand - 5' AUGCCAUUUUGA 3' b. 5' and 3' ends…

Q: What would happen if a lysine residue that was normally acetylated was mutated to an arginine?  A.…

A: Lysine acetylation occurs in the eukaryotic and prokaryotic organisms and it mutates thousands of…

Q: In eukaryotes, the mRNA is usually smaller than the gene, this is due to a. splicing b.…

A: Messenger RNA (mRNA) is a molecule found in cells that transports information from DNA in the…

Gene Interactions

When the expression of a single trait is influenced by two or more different non-allelic genes, it is termed as genetic interaction. According to Mendel's law of inheritance, each gene functions in its own way and does not depend on the function of another gene, i.e., a single gene controls each of seven characteristics considered, but the complex contribution of many different genes determine many traits of an organism.

Gene Expression

Gene expression is a process by which the instructions present in deoxyribonucleic acid (DNA) are converted into useful molecules such as proteins, and functional messenger ribonucleic (mRNA) molecules in the case of non-protein-coding genes.