ZuoTi.Pro
Question

Gene regulation in prokaryotes can occur through the following mechanisms EXCEPT: riboswitches Histone methylation antisense help please
science   biology   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Ans- riboswitch- a small segment of mRNA which changes the expression of a gene by binding to a small molecule or metabolites. most of the known riboswitch are found in prokaryote only a few exceptions.

Histone methylation- prokaryotes genome does not contain histone protein, histone methylation alter the gene expression depends on which amino acids of histone tails methylate but mainly histone methylation decreases the expression of the gene in eukaryote not in prokaryotes.

antisense RNA- in prokaryotes antisense RNA regulates transcription of genes, replication of plasmid. regulatory elements are also involved in the regulation of the different prokaryotic operon genes.

so option histone methylation is the correct answer

0 0
Add a comment
Know the answer?
Add Answer to:
help please Gene regulation in prokaryotes can occur through the following mechanisms EXCEPT: riboswitches Histone methylation...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not...

    Which of the following mechanisms to regulate gene expression are observed in eukaryotes, but are not generally observed in prokaryotes? Choose all that apply. Genes are grouped into operons, which allows transcriptional regulation to turn them all on together. RNA silencing selectively targets mRNA and destroys it to prevent further translation. Proteins can be activated or deactivated as a form of post-translational regulation. Epigenetic regulation can open or condense sectiosn of a chromosome, regulating which genes are transcribed. Regulatory proteins...

  • This question is about mechanisms of gene regulation in eukaryotes. a) In Drosophila melanogaster, Sex-lethal (Sxl)...

    This question is about mechanisms of gene regulation in eukaryotes. a) In Drosophila melanogaster, Sex-lethal (Sxl) controls somatic sexual development. i. Describe the regulatory mechanism that leads to the presence of Sxl protein only in female early embryos. [4 marks] ii. Explain how this difference is maintained later in the life cycle [6 marks] b) List two RNA modifications present in eukaryotes. Describe in detail the function of one of these RNA modifications in a living cell. [6 marks] c)...

  • This question is about mechanisms of gene regulation in eukaryotes. a) In Drosophila melanogaster, Sex-lethal (Sxl)...

    This question is about mechanisms of gene regulation in eukaryotes. a) In Drosophila melanogaster, Sex-lethal (Sxl) controls somatic sexual development. i. Describe the regulatory mechanism that leads to the presence of Sxl protein only in female early embryos. [4 marks] ii. Explain how this difference is maintained later in the life cycle [6 marks] b) List two RNA modifications present in eukaryotes. Describe in detail the function of one of these RNA modifications in a living cell. [6 marks] c)...

  • Part 1. Eukaryotes use at least two distinct mechanisms to control gene expression by altering the...

    Part 1. Eukaryotes use at least two distinct mechanisms to control gene expression by altering the structure of chromatin around a particular gene. One of these mechanisms is the covalent modification of histones to switch DNA between an open and closed confirmation. A second mechanism is the covalent modification of DNA (typically on cytosines) by methylation. A. Describe a type of histone modification and explain what effect is has on chromatin, and how that effect is achieved. a. One type...

  • Which of the following is NOT an example of genomic control of gene regulation? A. DNA...

    Which of the following is NOT an example of genomic control of gene regulation? A. DNA Methylation B. Gene Amplification C. DNA rearrangement D. Alternative RNA Splicing Could I please get an explanation included with the answer? Thank you!

  • If the two genes are unlinked, an organism with the genotype of AaBb can produce gametes...

    If the two genes are unlinked, an organism with the genotype of AaBb can produce gametes containing either Aa or Bb. AB, Ab, aB, or ab. AaBb. AB or ab. none of the abov Which of the following is NOT correct about miRNA? It is involved with posttranscriptional regulation in eukaryotes. It leads to one type of RNA interference. Its name is derived from “mitochondrial RNA.” It binds to a complementary mRNA sequence. It is found in many different organisms,...

  • "In one model/diagram, show how transciption factors, histone modifiers, chromatin remodelers, DNA methylation all cooperate to...

    "In one model/diagram, show how transciption factors, histone modifiers, chromatin remodelers, DNA methylation all cooperate to regulate the thermostat for an individual gene (how much mRNA is transcribed)." Lets say you've discovered a gene tht codes for a protein that interferes with your ability to scratch-off quiz cards. Clearly you need to shut this gene off. You can name your gene and its regulatory transciption factor(s) whatever you want, but the rest of your model should be accurate. Make sure...

  • someone please help! i have a brain fart :/ tations and Regulation of Gene Expression 6....

    someone please help! i have a brain fart :/ tations and Regulation of Gene Expression 6. Which of the following statements about the DNA in your brain cells is TRUE? a. The majority of the DNA in these cells is made up of genes that code for proteins. b. The majority of genes in these cells are expressed as RNA or proteins. C. Your brain cells contain approximately the same DNA as your heart cells. d. All of the above...

  • Which of the following changes to DNA can be part of epigenetic regulation of gene expression?...

    Which of the following changes to DNA can be part of epigenetic regulation of gene expression? Choose both correct answers. degradation of mRNA that is no longer needed methylation of DNA acetylation alternate mRNA splicing

  • Which of the following is not true regarding regulation of gene expression in eukaryotes? In eukaryotic...

    Which of the following is not true regarding regulation of gene expression in eukaryotes? In eukaryotic cells, transcriptional activators often work by recruiting the transcriptional macinery to gene promoters DNA methylation is an example of an epigenetic mark that can be inherited Acetylation of histones can result in a more open chromatin structure to allow transcription to occur Different genes can be turned off or on between different organs or stages of development Transcription factor DNA sequences are bound by...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT