The b1 allele encodes a transcription factor that stimulates production of anthocyanin, a purple pigment in plants. What would be the effect of deleting the seven tandem repeats that are located 100,000 bp upstream of the b1 locus in corn?

Q: Consider the Rho-dependent terminator sequence 5’CCCAGCCCGCCUAAUGAGCGGCCUUUUUUUU-3’. What affect…

A: The mutation is the change in the nucleotide sequence of the DNA. The point mutation is the mutation…

Q: what is the highly compacted strongly staining region of the chromosome with no transcriptional…

A: The highly compacted strongly region of the chromosome with no transcriptional activity is…

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: “DNMT3L Connects Unmethylated Lysine 4 of Histone H3 to de novo Methylation of DNA,” the authors…

A: Figure a and b of the paper “DNMT3L Connects Unmethylated Lysine 4 of Histone H3 to de novo…

Q: name TWO mechanisms of control of gene expression that are only used by eukaryotes and discuss why…

A: The majority of gene expression is regulated at the transcriptional level, owing to protein binding…

Q: Explain how the first transesterification reaction is initiated in self-splicing group I introns.…

A: There are two transesterification reactions involved in the self-splicing of group I introns. The…

Q: With several molecular biology techniques, researchers identified that the intertwined sequence…

A: Cell division is regulated by a network of genes and proteins through cell cycle checkpoints.…

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: What is the mechanism by which the Alu sequence has become dispersed to many sites in the genome?

A: An Alu elements is a transposable elements also known as the jumping gene . The transposable…

Q: What is meant by the term histone code? With regard to gene regulation, what is the proposed role of…

A: The mechanism that acts to suppress or induces the gene expression is called gene regulation. These…

Q: The IMD2 promoter contains three upstream transcription start sites (TSS) that are utilized under…

A: Inosine monophosphate dehydrogenase (IMD2) is a key enzyme in the purine biosynthesis pathway that…

Q: One mutation is a deletion of six nucleotides in the second exon of the gene and the other mutation…

A: Introns and exons are nucleotide sequences within a gene in mRNA. The conversion of DNA to RNA is…

Q: Suppose that a 20-bp deletion occurs in the middle of exon 2 of the gene. What will be the likely…

A: Alternative processing and splicing results in the production of multiple mRNA and proteins from…

Q: DNA methylation is considered an epigenetic phenomenon because the pattern of methylation can be…

A: Epigenetics refers to the phenomenon where traits can be inherited through reverdible changes in…

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: An old genetic observation is that a normally active gene will be silenced if it is moved by…

A: Histone alterations are linked to different transcription stages and functions, and epigenetic…

Q: X chromosome inactivation during dosage compensation in mammals.

A: There is major chromosomal difference in different sexes in many organisms. In females there are two…

Q: The number of protein-encoding genes in a prokaryotic cell equals the number of proteins that can be…

A: Genes encode proteins and dictate cellular functions. The genes expressed in a particular cell…

Q: yeast cells, telomerase remains active and maintains telomeres of about 300 base pairs. Propose what…

A: The end areas of chromosomes are called telomeres , are repetitive sequence that protect gene from…