Catabolite repression Study guides, Study notes & Summaries

The fundamental units of heredity are known as _____ and multiple versions of them are known as _____ . Correct Answer genes; alleles Which of the following best describes a typical prokaryote chromosome? Correct Answer circular, composed of DNA Genes with different information at the same locus are called: Correct Answer alleles What is typically the difference between the bacterial chromosome and a plasmid? Correct Answer The chromosome contains genes that are essential for survival, ...

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...

MMSC490 Exam 2 Questions with Complete Answers Which eukaryotic DNA polymerase replicates the lagging strand in the 3ʹ to 5ʹ direction? a. α b. γ c. δ d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. - Answer ️️ -d. None of the above; the lagging strand is replicated in the 5ʹ to 3ʹ direction. DNA polymerases can synthesize DNA: a. de novo, by catalyzing the polymerization of free dNTPs. b. by adding dNTPs to complementary dNTPs on a single-...

True or False (circle one): The anti-parallel nature of nucleic acids is illustrated in the replication and expression of DNA, and even the translation of mRNA into protein. True Accumulation of the protein _____1.______ during cell growth triggers initiation of DNA replication when it binds to the chromosome near the ________2._______ 1. DnaA 2. oriR/ origin of replication Negative regulation by ________________ results when a signaling molecule binds to a repressor protein, wh...

Straighterline. BIO 250 | Microbiology Final Exam Questions and Answers (Graded A+ 2023)BIO 250 | Microbiology Final Exam Questions and Answers (Already Graded A+ 2023) The term chemotroph refers to an organism that a. Uses CO2 for its carbon source b. Must obtain organic compounds for its carbon needs c. Gets energy from sunlight d. Gets energy by oxidizing chemical compounds e. Does not need a carbon source 23. Polar molecules a. Have an equal charge distribution b. Have an unequal cha...

1) A protein is 300 amino acids long. Which of the following could be the number of nucleotides in the section of DNA that codes for this protein? (Remember: DNA is double-stranded.) E) 1800 2) A short segment of an mRNA molecule is shown below. The polypeptide it codes for is also shown: 5′-AUGGUGCUGAAG : methionine-valine-leucine-lysine Assume that a mutation in the DNA occurs so that the fourth base (counting from the 5′ end) of the messenger RNA now reads A rather than G. What seq...

Biochemistry Final Exam Practice 63 Questions with Verified Answers The central dogma of molecular biology teaches us that: a. RNA replicates itself and DNA is translated into protein b. RNA is typically the genetic material c. RNA contains information, which is translated into amino acid sequences d. Proteins are not needed to replicate DNA or transcribe RNA e. RNA is made of the same monomers as DNA - CORRECT ANSWER c. RNA contains information, which is translated into amino acid sequ...

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...

BIO110 PRACTICE EXAM 4|165 Questions with Verified Answers TRNA has a few loops in its structure, what loops connects to the mRNA codon? a. codon domain b. anticodon c. acodon d. amino acid - CORRECT ANSWER b. anticodon Catabolite activator protein: a. increases the affinity of the promoter region for RNA polymerase b. decreases RNA polymerase activity c. becomes nonfunctional when it binds to AMP d. binds and activates RNA polymerase e. blocks RNA polymerase access to the DNA tem...

TOPIC: BIOCHEMISTRY - MOLECULAR / "CHROMATIN STRUCTURE" WHAT BINDS TO THE NUCLEOSOME AND TO LINKER DNA TO STABILIZE CHROMATIN FIBER? - ANSWER-H1 TOPIC: BIOCHEMISTRY - MOLECULAR / "CHROMATIN STRUCTURE PHOSPHATE GIVES DNA WHAT CHARGE? - ANSWER-NEGATIVE TOPIC: BIOCHEMISTRY - MOLECULAR / "CHROMATIN STRUCTURE WHAT GIVES HISTONES A POSITIVE CHARGE? - ANSWER-LYSINE AND ARGININE TOPIC: BIOCHEMISTRY - MOLECULAR / "CHROMATIN STRUCTURE WHEN DOES DNA CONDENSE TO FORM CHROSOMES? - A...