Operons Study guides, Class notes & Summaries

BIO 1232 - SEMI FINAL PART A AND B QUESTIONS AND ANSWERS 100% CORRECT. Cell Biology 1. Which of the following is the most important type of force used to stabilize secondary structure in proteins? a) Ionic bonds b) Hydrogen bonds c) Aromatic-aromatic ring interactions d) Hydrophobic Interactions e) Peptide bonds 2. Which of the following is NOT true of allosterically regulated enzymes? a) they follow Michaelis-Menten kinetics b) they demonstrate cooperativity c) their activity can b...

Regulation of nitrogen fixation exam questions and answers nif cluster - Answer- a genetically linked and coordinately regulated group of operons encoding genes required for nitrogen fixation What is the EBP for nif genes? - Answer- NifA How does the activity of NifA differ from that of NtrC? - Answer- The unmodified form of NifA is active NtrC needs to be phosphorylated to be active Under what 2 conditions does nif transcription occur? - Answer- 1) Only in the absence of a fixed nitrog...

Lac Operon Review Exam Questions And Answers 2023

BIO 1232 - SEMI FINAL PART A AND B QUESTIONS AND ANSWERS 100% CORRECT. Cell Biology 1. Which of the following is the most important type of force used to stabilize secondary structure in proteins? a) Ionic bonds b) Hydrogen bonds c) Aromatic-aromatic ring interactions d) Hydrophobic Interactions e) Peptide bonds 2. Which of the following is NOT true of allosterically regulated enzymes? a) they follow Michaelis-Menten kinetics b) they demonstrate cooperativity c) their activity can b...

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...

BIO 13 Practice Test 40 Questions with Verified Answers RNA contains the sugar a. ribose. b. deoxyribose. c. glucose. d. lactose. - CORRECT ANSWER a. ribose. Unlike DNA, RNA contains a. adenine. b. uracil. c. phosphate groups. d. thymine. - CORRECT ANSWER b. uracil. Which of the following are found in both DNA and RNA? a. ribose, phosphate groups, and adenine b. deoxyribose, phosphate groups, and guanine c. phosphate groups, guanine, and cytosine d. phosphate grou...

Vertical transmission - Answer parent to offspring Horizontal transmission - Answer transfer of small pieces of DNA from one cell to another Fredrick Griffith - Answer - Studies Streptococcus pneumoniae in mice -Hypothesized that the bacteria could "transfer information" to each other Describe the complete Griffith experiment - Answer -S leads to host death -R strains are not fatal -Prekilling S strains prevent illness -Killed S plus live R is fatal Conjugation - Answer Horizon...

Prokaryote Can make multiple proteins from one operon Eukaryote -They have operons if they have a plastid or mitochondria -Operon like features have been found in organisms like yeast -Gene regulation in eukaryotic cells takes place at multiple levels transcriptional control Operon A unit made up of linked genes which is thought to regulate other genes responsible for protein synthesis Mus Musculus The most important model organism in human genetics Model for human diseases Immunogeneti...

The functional unit of genetic information is the A) nucleotide. B) gene. C) chromosome. D) protein. B) gene Which of the following statements is TRUE concerning mRNA? A) mRNA has a very short half-life. B) mRNA has complex secondary structure. C) mRNA is catalytic. D) mRNA is the product of translation. A) mRNA has a very short half-life. 00:01 01:22 DNA-binding proteins interact predominantly within which portion of a double-stranded DNA helix? A) major groov...

BIO 214 EXAM 3 Practice EXAM 57 Questions with Verified Answers In the lac operon, CAP binding to the CAP site of the promoter ____. a. occurs when glucose is present b. inhibits RNA polymerase from binding to the promoter c. occurs when cAMP is absent d. helps the repressor protein bind to the operator e. enables RNA polymerase to transcribe the operon's genes - CORRECT ANSWER enables RNA polymerase to transcribe the operon's genes Gene regulation in both prokaryotes and eukaryotes...