Gene expression in mammals can be increased by which of the following mechanisms? A. X-chromosome inactivation (as in the case of the female tortoiseshell cat) B. histone demethylation C. histone methylation D. histone deacetylation E. histone dephosphorylation

Gene expression in mammals can be increased by which of the following mechanisms? A. X-chromosome inactivation (as in the case of the female tortoiseshell cat) B. histone demethylation C. histone methylation D. histone deacetylation E. histone dephosphorylation

Name: 4. Gene expression in mammals can be increased by which of the followi
Uploaded: 2024-03-20T06:42:41.000Z
Channel: Bartleby
Description: 4. Gene expression in mammals can be increased by which of the following mechanisms?A. X-chromosome inactivation (as in the case of the female tortoiseshell cat)B. histone demethylationC. histone methylationD. histone deacetylationE. histone dephosph

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter15: From Dna To Protein

Section: Chapter Questions

Problem 8TYK

See similar textbooks

Similar questions

Table of the Standard Genetic Code Middle base 5'- C_-3' UCU Ser (S) |UAU Tyr (Y) UCC Ser (S) UAC Tyr (Y) UCA Ser (S) UCG Ser (S)UAG Ter CCU Pro (P) CAU His (H) CCC Pro (P) CCA Pro (P) CAA GIn (Q) CCG Pro (P) CAG GIn (Q) 5'- _U -3' 5'-_A_-3' 5'-_G_-3' 5'-U_-3' UUU Phe (F) 5'-U_-3' UUC Phe (F) 5'-U_-3' |UUA Leu (L) 5'-U_-3' UUG Leu (L) 5'-C_-3' |CUU Leu (L) 5'-C_-3' |CUC Leu (L) 5'-C_-3' CUA Leu (L) 5'-C_ -3' CUG Leu (L) UGU Cys (C) 5'-_U-3' 5'-_C-3' 5'-_A-3' UGG Trp (W) 5'-_G-3' 5'- U-3' 5'-C-3' 5'-_A-3" 5'- G-3' 5'- U-3' 5'-_C-3' 5- А-3' 5'-_G-3' GCU Ala (A) GAU Asp (D) GGU Gly (G) 5'-_U-3' 5'-C-3' GGA Gly (G)5'-_A-3' GGG Gly (G) 5'-_G-3' UGC Cys (C) UGA Ter UAA Ter CGU Arg (R) CGC Arg (R) CGA Arg (R) CGG Arg (R) ACU Thr (T)|AAU Asn (N) AGU Ser (S) AAC Asn (N) AGC Ser (S) AGA Arg (R) AGG Arg (R) CAC His (H) 5'-A_-3' |AUU lle (1) 5'-A_-3' AUC Ile (1) 5'-A_-3' |AUA lle (1) 5'-A_-3' |AUG Met (M) ACG Thr (T) AAG Lys (K) 5'-G_-3' GUU Val (V) 5'-G_-3' GUC Val (V) 5'-G_-3' GUA Val (V)…
1. How would the following affect BOTH transcription and translation of a particular multi- exon gene in a eukaryotic cell (for each address both transcription and translation of a particular multi-exan gene; also treat each independently): A mutation abolishing kinase activity in TFIIH a. b. A mutation abolishing mRNA binding in the snRNP U1 С. A mutation in aminoacyl tRNA synthetase for isoleucine such that it can't bind ATP (assume there is an isoleucine in the code)
HDAC's are important enzymes involved in the regulation of Gene expression. This is because a. They create the Z form of DNA by removing acetyl groups from cytosines. b. they create euchromatic structure by adding acetyl groups to cytosine. c. they add methyl groups from histones creating less gene expression. d. they remove acetyl groups from histones creating less gene expression. e. they add methyl groups onto cytosines on DNA and create a heterochromatic structure.
1. Which of the following conditions will result to deactivation of a gene? a. histone methylation b. phosphorylation of a transcription factor c. binding of hormones to its nuclear receptor d. deactivation of transcription factor inhibitory protein 2. Direct complementarity of the microRNA to the target mRNA will lead to a. mRNA degradation b. inhibition of transcription c. chromatin remodeling d. inhibition of translation
20. Genome imprinting can be the result of silencing genes by methylation of promoter DNA sequences. Which of the following is true? A. They directly inhibit RNA transcription. B. They directly inhibit protein translation. C. They directly inhibit nuclear pore transport. D. They directly inhibit ribosome assembly E. They reduce protein stability.
5. Design a 10-bp primer that could be used to amplify the following sequence of DNA: 5'-AGTCGATCCCTGATCGTACGCTACGGTAACGT-3'
1. Trithorax group proteins silence genes by* a. trimethylating histone 3 at lysine residue 2. b. trimethylating histone 4 at lysine residue 2. c. trimethylating histone 3 at lysine residue 4. d. trimethylating histone 4 at lysine residue 4. 2. Bonding of which ligand does NOT result to transcription activation?* a. fibroblast growth factor b. jagged protein c. TGF-β family d. Wnt family
6. Similar to the class notes (Intro to Genetics), a segment of DNA (shown below) contains a promoter segment (the first 9 base pairs), a ribosome binding segment (the next 6 base pairs), and a segment that codes for protein synthesis which is started by the rest of the base pairs. ACTCCATTGAACCATTTCTATGATCCGCTAACG-... TGAGGTAACTTGGTAAAGATACTAGGCGATTGC-... A. When the DNA is induced to be copied to mRNA, the top strand is coding, meaning that the mRNA makes an identical copy of the lower strand (replacing T with U) The mRNA copy starts with the ribosome binding sequence. What is the sequence of the mRNA that will go to the ribosomes? B. What are the first 6 amino acids of the protein that are coded for by the mRNA? C. What would the amino acid sequence be if... i. a transition mutation occurred on the final G in the mRNA? ii. all of the G & C bases in the protein synthesis portion had transition mutations? iii. a point deletion mutation occurred in the ATA sequence (in the lower strand…
1.This is where the RNA polymerase is bound and a short region of DNA is accessible to begin the process of transcription. Group of answer choices a. Closed Promoter Complex b. Open Chromatin c. Closed Chromatin d. Open Promoter Complex 2.The nucleotide near the 3' splice site of an intron that joins with a Guanine located at the 5' splice site by a 2'-to5' phosphodiester bond is called the: Group of answer choices a. Branch Point Adenine b. Branch Point Thymine c. Branch Point Uracil d. Branch Point Cytosine 3.The form of chromatin in which histone 1 partially condenses chromatin fibers into a coiled form is called: Group of answer choices a. 10 nm fibers b. Heterochromatin c. 300 nm fibers d. Solenoid 4.Exchange of genetic information between homologous chromosomes. Group of answer choices a. Homologous Recombination b. Gene Flow c. Gene Conversion d. Homologous Repair
5. Which of the following descriptions of EF-Tu is correct? A. EF-Tu delivers fMet-tRNA to the A site of the ribosome. B. EF-Tu delivers fMet-tRNA to the P site of the ribosome. C. EF-Tu facilitates the translocation of tRNA and mRNA down the ribosome in elongation. D. EF-Tu hydrolyses GTP to GDP. E. EF-Tu participates in translation termination.
3a. Select all the correct types of RNA that are both the product of transcription and are also translated in the cytoplasm. ☐ snRNAs ☐ pre-tRNAs ☐ rRNA ☐ tRNA ☐ miRNA ☐ mRNA 3b. The ribozyme found in the ribosome catalyzes ... (which of the following?) a. the synthesis of pre-mRNA as part of the transcription process. b. the formation of the peptide bond. c. the association between the large and small ribosomal subunits. d. a reaction that uses RNA as a substrate.
4. If a DNA triplet is CGA A. What is the mRNA codon? B. What is the tRNA anticondon? C. What amino acid does the mRNA code for? 5. If 18% of the nucleotide bases in a DNA molecule are Guanine (G) A. What % of the bases are cytosine (A)? B. What % of the bases are adenine (A) and thymine (T) combined? C. What % of the bases are thymine alone?