You obtain the sequence of a gene containing 10 exons, 9 introns, and a 3_ UTR containing a polyadenylation consensus sequence. The fifth intron also contains a polyadenylation site. To test whether both polyadenylation sites are used, you isolate mRNA and find a longer transcript from muscle tissue and a shorter mRNA transcript from all other tissues. Speculate about the mechanism involved in the production of these two transcripts.

Q: One can synthesize RNA from any gene in a test tube (in vitro). You want to synthesize mRNA from a…

A: Translation is a heterocatalytic action of DNA by means of which RNA is synthesize from specific DNA…

Q: Exons 1, 2 and 3 of a human gene are 156, 224 and 524 bp long respectively. The introns 1 and 2 are…

A: Introduction :- Exons are the coding regions of an RNA transcript or the DNA that codes for it that…

Q: ALTE

A: Exon is a genetic code region that contains the information needed to enter a protein code. In…

Q: Examine the following mRNA transcripts: Wild type: 5' CACUGAUGCACGGAUCAU 3' Mutant: 5'…

A:

Q: Introns in eukaryotic protein-coding genes may be quite large, but almost none are smaller than…

A: An intron is any nucleotide sequence within a gene that is removed by RNA splicing during maturation…

Q: Suppose that the diagram below represents the genomic organization of an enzyme involved in eye…

A: Transcription is the process by which  RNA transcript is formed from DNA. Various type of RNA are…

Q: What is a consensus sequence? How similar to the consensus sequence would you expect the promoter of…

A: Introduction  An area of DNA upstream of a gene called a promoter, as it relates to genomics, is…

Q: You isolate a nuf gene mutant and determine the base sequence of the mutant mRNA:  What is the…

A: The mRNA (messenger ribonucleic acid) is the transcript molecule synthesized from a gene by the…

Q: A rice MADS box transcription factor gene contains a number of sequences that are removed in the…

A: In eukaryotes including rice mRNA processing involves the removal of introns which are non-coding…

Q: Consider a single base insertion mutation between the 3rd and 4th codons in a natural gene that…

A: Amino acid  The building blocks of proteins. The protein is a polymer made up of chain of amino…

Q: Examine the following mRNA transcripts: Wild type: 5' CACUGAUGCACGGAUCAU 3' Mutant: 5'…

A: Mutation is in 3rd codon from 3' end. In wild type it codes for histidine while in mutant it codes…

Q: You get the sequence of a gene with 10 exons, 9 introns, and a polyadenylation consensus sequence in…

A: Polyadenylation is a step in processing immature messenger RNA (ribonucleic acid) produced by…

Q: protein. How would the protein produced from sequence #1 differ from the protein produced from…

A: The sequences provided are of a non-coding strand or template strand. mRNA is transcribed…

Q: There is a situation in which a gene has five exons. Please draw four possible mature products of…

A: Alternative splicing is a biological process that involves the joining of exons from the same gene…

Q: a gene sequence has two poly-A sites, one in the center and one at the end, we can isolate mRNA with…

A: Poly-A refers to the poly-A tail which is at the 3'-end of oligonucleotides consisting of a…

Q: ncer where the newly-discovered genes BR and AIN are known to play a role in the development of this…

A: Cancer results from the uncontrolled cell division giving rise to a lump of cells that may be…

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.