MiRNAs Study guides, Class notes & Summaries

Genetics Second Exam Practice Test 150 Questions with Verified Answers Which organism has polycistronic mRNA? (eukaryotic or prokaryotic) - CORRECT ANSWER Prokaryotic Do prokaryotes undergo splicing/processing? - CORRECT ANSWER No Where are attenuater sequences found? (what type of organism and what class of operons?) - CORRECT ANSWER In prokaryotic amino acid operons Do prokaryotic mRNA ALWAYs encode trans-acting factors? - CORRECT ANSWER No Which of the following statements is t...

BI 213 midterm 2 practice exam 79 Questions with Verified Answers What is the purpose of the TATA box found in eukaryotic promoters? A) It serves as a termination signal for RNA polymerase B) It sets the translation reading frame of the mRNA C) RNA polymerase II binds directly to the TATA box to initiate transcription D) It binds the first Met-tRNA for translation of the mRNA E) It is the binding site for general transcription factors that recruit RNA polymerase - CORRECT ANSWER E ...

BIO 302 hw and practice Exam 2|30 Questions with Verified Answers Which form of control directly influences which mRNAs are selected by ribosomes for the synthesis of proteins? a. mRNA degradation control b.mRNA processing and localization control c. Protein activity control d. Transcriptional control e. Translational control - CORRECT ANSWER translation control Transcription regulators usually bind where on a DNA double helix? a. 3' End b. 5' End c. Major groove d. Minor gr...

BIOL 133 Chapter 16 Week 12 Study Questions 10.0/ 10.0 Points 1. A gene is made up of three exons (numbered consecutively) with two introns (intron 1 between exons 1 and 2 and intron 2 between exons 2 and 3). What would happen if there were a mutation at the 3’ splice site of intron 1? 2. _________ is the first protein to bind to mRNA to being initiation of translation. 3. In eukaryotes, where would a protective modification be found on mRNA? 4. The portions of the mature mRNA where RNA-b...

Lesch-Nyhan Syndrome: what causes it and what are manifestations? - ***HGPRT deficiency in purine salvage pathway (this enzyme normally converts hypoxanthine to IMP and guanine to GMP). This deficiency leads to excessive Uric acid production and de novo purine synthesis. It is X linked recessive. Symptoms: hyperuricemia, gout, aggression / self mutilation, mental retardation, dystonia. 2. Treatment for Lesch-Nyhan? - ***Allopurinol / febuxostat second line. Both of these drugs inhibit...

GENE 4200 practice exam 1|26 Questions with Verified Answers Transcription factors help regulate which cell types and tissues will express a given gene (T/F) - CORRECT ANSWER When comparing RNA levels for gene X between two samples by qPCR, the sample with thehighest DCT value would have the least gene X RNA (T/F) - CORRECT ANSWER Exons are the most abundant DNA sequences in the human genome (T/F) - CORRECT ANSWER false Most transposons in the human genome are inactive. (T/F) - COR...

OpenStax Microbiology Test Bank Chapter 12: Modern Applications of Microbial Genetics Chapter 12: Modern Applications of Microbial Genetics * = Correct answer Multiple Choice 1. Which of the following is the definition of biotechnology? A. The alteration of DNA in a cell B. The use of living systems to benefit humankind* C. Using computers to synthesize biomolecules D. Using DNA for solving mathematical problems Difficulty: Easy ASM Standard: 26 2. Which of the following is the defin...

Test Bank: Epigenetics and Disease Huether: Understanding Pathophysiology , 7th Edition MULTIPLE CHOICE 1. When considering abnormal epigenetic modifications, what factor is currently being viewed as strongly associated with the development of some cancers? a. Family genetics b. Lifestyle choices c. Environmental stressors d. Emotional coping skills ANS: C Environmental stressors can markedly increase the risk of aberrant epigenetic modification and are strongly associated with som...

Biology Chapter 18 Practice Test 44 Questions with Verified Answers In the case of E. coli, the bacterium may need to synthesize tryptophan, or its host, a human, may supply all the tryptophan it needs. Why do both bacteria and humans need tryptophan? A) It is an important enzyme in the glycolysis pathway. B) It is one of the 20 amino acids used by all organisms to synthesize proteins. C) It is an important constituent of cell walls in both humans and bacteria. D) Tryptophan induces the ...

Genetics Second Exam Practice Test 150 Questions with Verified Answers Which organism has polycistronic mRNA? (eukaryotic or prokaryotic) - CORRECT ANSWER Prokaryotic Do prokaryotes undergo splicing/processing? - CORRECT ANSWER No Where are attenuater sequences found? (what type of organism and what class of operons?) - CORRECT ANSWER In prokaryotic amino acid operons Do prokaryotic mRNA ALWAYs encode trans-acting factors? - CORRECT ANSWER No Which of the following statements is t...