An hnRNA molecule contains three exons, with the middle one being an “alternative” exon. How many different mRNA molecules can be produced from this hnRNA molecule?

Q: What is a disorder caused by errors in transcription? What kind of error is involved?

A: Transcription is defined as the process by which the information present in a DNA strand is copied…

Q: A full-length eukaryotic gene is inserted into a bacterial chromosome. The gene contains a complete…

A: The eukaryotic DNA is composed of coding and non-coding sequences, almost 90% are non-coding…

Q: Assuming each dimer binds to one unique sequence, how many unique sequences can protein dimers…

A: Proteins are biomolecules, which are made from amino acids. They are polymers of amino acids. They…

Q: You are working in a research lab that is surveying the CFTR gene sequence in humans to identify new…

A: A synonymous mutation is mutation in the DNA sequence that leads to change in the codon for amino…

Q: You’re going for a bike ride, and as your muscles work harder, your body needs to produce more of…

A: Genes are specific sequences in DNA that code for specific protien required for cell functioning.…

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: How many types of promoters are there?

A: Promoters are DNA sequences that determine where the gene transcription by RNA polymerase begins.…

Q: Why is it important for a transcription factor/activator to have a high affinity for a specific DNA…

A: Transcription is a metabolic process in which DNA sequence of the gene is copied into an RNA…

Q: What are the three modifications made to pre-mRNA molecules before they become mature mRNAs that are…

A: The unmodified mRNA which is present in the nucleus is known as a pre-mRNA. In eukaryotic cells, the…

Q: What happens when a nonsense mutation is introduced into a transposon's gene encoding transposase?

A: A non-sense mutation is a mutation that terminates translation earlier resulting in the formation of…

Q: in a eukaryote cell, what do we call the DNA sequence that the specific transcription factor binds…

A: The transcription is the process by which RNA is produced from the DNA template. In case of…

Q: Where in a eukaryotic cell does the molecular product of transcription (Eukaryotic Transcription) go…

A: In a eukaryotic cell, transcription occurs in the nucleus, and translation occurs at ribosomes in…

Q: Why is the genome contained within a membrane?

A: A genome is a complete set of "genetic information" in an organism. It stores all of the information…

Q: man rhodopsin gene is 2675 nucleotides long from transcription start site to transcription stop…

A: The rho factor provides directions for creating a macromolecule referred to as rhodopsin. This…

Q: Label these processes 1-8 (1 being the earliest time point) in the order they would occur during…

A: DNA is the molecule which stores the genetic information. Genetic information in the DNA is first…

Q: Describe the effects of intron phase on alternative splicing with diagram

A: Alternative splicing involves the removal of introns from the mRNA transcript as introns are the…

Q: Which step in elongation is catalyzed by RNA polymerase?

A: RNA polymerase is an enzyme responsible for catalyzing the process of transcription, which is the…

Q: What are transposable elements? Explain the mechanism by which they move from one location to…

A: A transposable element (TE or transposon) is a DNA sequence that may move around inside a genome,…

Q: draw an arrow pointing to where you would place an sgRNA(s) in order to make a full gene deletion,…

A: Single guide RNA or sgRNA is a piece of RNA which mainly used to guide the Cas9 protein to specific…

Q: Transcription and translation are separate processes in gene expression; however, they have…

A: Central dogma is a process where particular segment of DNA or gene ultimate express as a protein or…

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.