How Is DNA Replication Different From Gene Expression? Explanation: Gene expression is the bio-process by which DNA is “transformed” into protein, whereas DNA replication is the bio-process by which the double-helix DNA system is duplicated. … Gene expression also is source of great errors, such as in splicing, a process by which the mRNA is
What Is The Simplified Directional Flow Of Genetic Information? The information stored in DNA is in the sequence of the individual nucleotides when read from 5′ to 3′ direction. Conversion of the information from DNA into RNA (a process called transcription) produces the second form that information takes in the cell. What is the flow
What Would Be The Most Likely Effect Of A Mutation In A SnoRNA That Changed The Antisense Sequence? What would be the most likely effect of a mutation in a snoRNA that changed the antisense sequence? The snoRNP would be assembled, but rRNA molecules would not be modified. What might be the effect of a
Which Are Different Forms Of The Same Gene? An allele is a variant form of a gene. Some genes have a variety of different forms, which are located at the same position, or genetic locus, on a chromosome. Humans are called diploid organisms because they have two alleles at each genetic locus, with one allele
Which DNA Polymerase Is Used In DNA Repair? Base excision-repair removes many modified bases and abasic sites, and in mammalian cells this mainly involves DNA polymerase beta. An alternative means for completion of base excision-repair, involving DNA polymerases delta or epsilon, may also operate and be even more important in yeast. Which polymerase is involved
How Do Operons Regulate Gene Expression In Prokaryotes? Prokaryotic operons are commonly controlled by the binding of repressors to operator regions, thereby preventing the transcription of the structural genes. Such operons are classified as either repressible operons or inducible operons. How do prokaryotes use operons to control genes? In prokaryotic cells, there are three types
What Is Gene Expression For Dummies? Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA. To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that
How Do Inducible Promoters Work? Promoters control the binding of RNA polymerase and transcription factors. Since the promoter region drives transcription of a target gene, it therefore determines the timing of gene expression and largely defines the amount of recombinant protein that will be produced. What is the difference between an inducible and constitutive promoter?
What Are Hox Genes And Why Are They So Important? HOX genes are a family of regulatory genes that encode transcription factors and are essential during embryonic development. These genes are highly conserved between species such that all metazoans possess a common genetic system for embryonic patterning. What are HOX genes and why are they
What Are The 5 And 3 UTR? 5′ UTR is the portion of an mRNA from the 5′ end to the position of the first codon used in translation. The 3′ UTR is the portion of an mRNA from the 3′ end of the mRNA to the position of the last codon used in translation.