I need help please Which statement accurately describes the expression of genes in the nervous system?O Different neurons express different combinations of genesO A small subset of the total human genome is expressed in the CNS.O Every gene in the human genome is expressed in the CNS.Splice variants add diversity to brain function via beneficial mutations.O The genes that are expressed in the CNS are expressed equally in all neurons.

Name: I need help please Which statement accurately describes the expression
Uploaded: 2024-03-20T06:42:41.000Z
Channel: Bartleby
Description: I need help please Which statement accurately describes the expression of genes in the nervous system?O Different neurons express different combinations of genesO A small subset of the total human genome is expressed in the CNS.O Every gene in the hu

Neurons or the nerve cells are the basic structural and functional unit of the nervous system. Like…

Science

Biology

Which statement accurately describes the expression of genes in the nervous system? O Different neurons express different combinations of genes A small subset of the total human genome is expressed in the CNS. Every gene in the human genome is expressed in the CNS. Splice variants add diversity to brain function via beneficial mutations. O The genes that are expressed in the CNS are expressed equally in all neurons.

Which statement accurately describes the expression of genes in the nervous system? O Different neurons express different combinations of genes A small subset of the total human genome is expressed in the CNS. Every gene in the human genome is expressed in the CNS. Splice variants add diversity to brain function via beneficial mutations. O The genes that are expressed in the CNS are expressed equally in all neurons.

Concepts of Biology

1st Edition

ISBN:9781938168116

Author:Samantha Fowler, Rebecca Roush, James Wise

Publisher:Samantha Fowler, Rebecca Roush, James Wise

Chapter9: Molecular Biology

Section: Chapter Questions

Problem 10RQ: Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional...

See similar textbooks

Similar questions

Different cell types, for example a muscle or a blood cell in the same organism retain O only a small fraction of their original set of genes, the ones they will need specifically for functioning, but can regenerate these lost genes as needed. O a complete set of all the same genes, but most of the genes have been permanently altered so that they cannot be transcribed into mRNA transcripts. O a complete set of their genes, and retain the ability to express those genes under certain circumstances into MRNA. O the ability to change their DNA to add regulatory elements that can turn off or on genes.
The following is true about epigenetic gene control: O epigenetic changes to the chromatin may result from childhood development epigenetic changes to the chromatin may result from chemicals in the environment O epigenetic changes to the chromatin may result in cancer O An example of a chromatin change is DNA methylation that prevents gene expression from that area of the DNA
What is the primary mechanism by which eukaryotes control transcription during cellular differentiation? O Posttranslational control of proteins through ubiquitination and phosphorylation O Regulatory transcription factors that influence chromatin structure and bind to regulatory regions O Inhibition of RNA polymerase through the expression of inhibitory enzymes O Production of microRNAs to disable mRNAs that should not be expressed O Alternative splicing of genes in different tissue types
I. The retinoic acid receptor (RAR) is a transcription factor that is similar to steroid hormone receptors. Thesubstance (ligand) that binds to this receptor is retinoicacid. One of the genes whose transcription is activatedby retinoic acid binding to the receptor is myoD. Thediagram that follows shows a schematic view of theRAR proteins produced by genes into which one oftwo different 12-base double-stranded oligonucleotides had been inserted in the ORF. The insertion site(a–m) associated with each mutant protein is indicatedwith the appropriate letter on the polypeptide map.For constructs encoding proteins a–e, oligonucleotide 1(5′ TTAATTAATTAA 3′ read off either strand) wasinserted into the RAR gene. For constructs encoding proteins f–m, oligonucleotide 2 (5′ CCGGCCGGCCGG 3′)was inserted into the gene.NH2 f g h i j k l m COOHa b c d eThe wild-type RAR protein can both bind DNA and activate transcription weakly in the absence of retinoic acid(RA) and strongly in RA’s presence. Each…
What does the ob gene code for? How does it work? Is this a gene found only in animals, or do humans have it also?
Control of gene expression in eukaryotic cells occurs at which level(s)? a. only the transcriptional level b. epigenetic and transcriptional levels c. epigenetic, transcriptional, and translational levels d. epigenetic, transcriptional, post-transcriptional, translational, and post-translational levels
Gene expression is... O How genes are replicated into two new strands identical to each other O How genes are duplicated, forming a new gene O How genes are mutated, creating a new allele O How genes are transcribed and translated into protein
How does epigenetic regulation differ from other forms of gene regulation? OIt is easily reversible. O It can regulate multiple genes at once. O It is the least energetically expensive. O It forms a physical barrier to prevent transcription. O It can be inherited by somatic daughter cels
Choose ALL of the TRUE statements below. O All animal cells (except gametes and blood cells) contain the entirety of their genome. V Prokaryotes can control gene expression only through transcription. O Eukaryotes can control gene expression by processing and degrading proteins. O Alternative RNA splicing, mRNA degradation, and RNA interference are all types of pre-transcriptional gene regulation in prokaryotes OEukaryotes can reduce the access to genes through histone modifications ONLY. V Eukaryotes can control gene expression through both transcriptional and translational controls.
How does position effect influence gene expression? 1 | The movement of the genetic material on the chromosome by inversions or translocations may place a coding sequence near a new regulatory region, thus activating the expression of the gene. The movement of the gene may place it into a region that is highly condensed (heterochromatin). The movement of a gene may remove it from its normal promoter, thus silencing the gene. O All of the above answers are correct
How is the expression of genes controlled at the chromosomal level? A. DNA can synthesize extra histones as needed B. DNA can either be condensed into heterochromatin or decondensed into euchromatin C. DNA can be unwound into euchromatin to reduce the level of expression D. The expression of DNA can only be controlled at the transcriptional level E. DNA is spontaneously deleted from a chromosome if not needed
Can one transcription factor sometimes act as a repressor and sometimes act as an activator? O a. Yes, but it depends on where the transcription factor binds in the promoter O b. Yes, but it depends on other proteins that migth act with the transcription factor O c. No, transcription factors are always either activators or repressors O d. Yes, but only if a mutation happens One of the genes upregulated by EWS-FLI1, PTPL1, is a protein tyrosine phosphatase. Which statement about protein tyrosine phosphatases is FALSE? O a. They can inactivate cytoplasmic proteins by removing a phosphate O b. They can inactivate tyrosine kinase receptors by removing a phosphate O . They can activate cytoplasmic proteins by removing a phosphate O d. They can inactivate cytoplasmic proteins by adding a phosphate