Given its lac - Study guides, Class notes & Summaries

UNT Biology 1710 Practice Exam 3|52 Questions with Verified Answers An excellent example of the genetic phenomenon known as continuous variation would be: a. flower color in plants. b. height in humans. c. human blood groups. d. epistasis. e. fur color in arctic animals - CORRECT ANSWER B) height in humans A human genetic trait passed from one generation to the next has an unusual inheritance pattern. The genotype and phenotype of the offspring depends only upon the genotype of the mo...

Growth media - nutrient-rich environment for isolating and culturing microorganisms, includes sugars, amino acids, and vitamins, also called nutrient broth, grows microbes in a suspension Lysogeny broth - most common nutrient broth, can grow a vast array of microbes, plates are yellow, non-selective and non-differential media, commonly used for growing e coli (easily produces recombinant proteins) Selective media - suppress growth of unwanted bacteria and encourage growth of desired microb...

ANSC 1401 Crossland Final Exam Questions With Verified Answers 1 gram of lipids yields 2.25x the energy of 1 gram of carbohydrate - answerTrue 1 mL of rumen fluid can contain __ bacterial cells. - answer10,000,000,000 90% of broilers are raised in large integrated farms - answerTrue A dairy heifer will enter the production cycle and her first lactation at 2 years of age. - answerTrue A disease agent is called an antigen - answerTrue A female who is not yet cycling is in gestation - answe...

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 207 EXAM2 PRACTICE TEST FROM STUDY GUIDE 49 Questions with Verified Answers Which of the following molecules links glycolysis with the TCA cycle, and also serves as a precursor for many biosynthetic products? a. malate b. citrate c. oxaloacetate d. acetyl-CoA e. succinate - CORRECT ANSWER d. acetyl-CoA What methods do microorganisms NOT use to minimize energy for biosynthesis? a. Inhibit or kill nutritional competitors by making antimicrobials b. Loss of genes encoding enzymes f...

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...

BIO Exam 4 Practice Test 174 Questions with Verified Answers The term polycistronic mRNA means: A.There is more than one mRNA strand produced during each round of transcription. B.There are multiple promotors to initiate transcription of this RNA. C.There are multiple operators for transcription of this RNA. D. There are multiple open reading frames in the mRNA produced. - CORRECT ANSWER D Please choose the true statement: A. During replication, the DNA leading strand is polymerized i...

CSET 215/217 Xam Practice Test 147 Questions with Verified Answers Which is not true about a cell membrane? A. It is made from phospholipids B. Both plant and animal cells have a cell membrane C. The cell wall is the same as the cell membrane in plants D. It controls the passage of nutrients within a cell - CORRECT ANSWER C. The cell wall is the same as the cell membrane in plants Plant cells also have an outer cell wall to give it structure Microorganisms use all but the followin...

Ap Bio Chapter 18 Practice Test 99 Questions with Verified Answers The role of a metabolite that controls a repressible operon is to - CORRECT ANSWER e) bind to the repressor protein and activate it The tryptophan operon is a repressible operon that is - CORRECT ANSWER E) turned off whenever tryptophan is added to the growth medium. Which of the following is a protein produced by a regulatory gene? - CORRECT ANSWER D) repressor A lack of which molecule would result in the cell's ina...

Genetics Exam 2 practice exam 107 Questions with Verified Answers In five Hfr strains, each of which was used to build a time-of-entry map, the genes entered the recipient cells as follows: Strain 1: S L A C T F Strain 2: N P F T C A Strain 3: T F P N U Y Strain 4: S H Y U N P Strain 5: U N P F T C Which of the following represents a correct compilation of these results? A) S L A C T F P N H C U B) N P F T S L A C H U T C) T C A L S P N U Y H D) U N P F T C A L S T F E) S L A C T F...