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BIO 2120 Exam 2 - Questions and Answers RNA secondary and tertiary structure Defined by base pairing that forms stem-loops, critical for fitting onto the ribosome Genetic code collection of codons of mRNA, each of which directs the incorporation of a particular amino acid into a protein during protein synthesis In vitro translation Protein synthesis in a cell-free extract. How many possible codons are there? 64 61 specify an amino acid 3 are stop codons that signal the termination of protein sy...

Chapter 13 Practice Exam 42 Questions with Verified Answers Which of the following is a type of RNA that gets translated? A) rRNA B) mRNA C) tRNA D) miRNA E) A, B, and C all get translated. - CORRECT ANSWER B Which of the following RNA molecules are required for the process of translation? A) crRNA B) tRNA C) snRNA D) snoRNA E) siRNA - CORRECT ANSWER B Over time, DNA replaced RNA as the primary carrier of genetic information, and the chemical stability of DNA is believed to be...

An Ames test of a compound suspected to be a mutagen was examined before and after incubation with rat liver extract. Based on the results shown, what do you conclude? correct answers Compound is mutagenic without liver enzymes and this activity is further enhanced by liver enzymes Lynch syndrome is a human genetic disease characterized by ~100-fold higher incidence of colon cancer in men and women - and uterine cancer in women - by the age 50, as compared to the general population. Which sta...

BIO Practice from Practice Exam 2|112 Questions with Verified Answers Complementary base-pairing allows for A) genes to be expressed as phenotype. B) spontaneous mutations to occur. C) covalent bonds to form between the opposite bases. D) replication to be semiconservative. E) DNA to serve as its own template for replication. - CORRECT ANSWER E) DNA to serve as its own template for replication. 6) The process by which genetic information is transferred from DNA to RNA is called ...

BISC 440 cell and molec exam 2 questions and answers graded A+ Elongation factors check the accuracy of codon-anticodon pairing and increase the rate of translation RNA polymerase II requires general transcription factors to help position it correctly at the promoter Polyribosomes (complexes of two or more ribosomes) can be seen in the electron microscope. What is holding the ribosomes together? mRNA In eukaryotes, but not prokaryotes, ribosomes find the start site of tr...

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...

Transcription - correct answerCells copy DNA to RNA Translation - correct answerCells use information in RNA to make a protein RNA splicing - correct answera process in eukaryotic cells in which segments of an RNA transcript are removed What are the subunits of RNA? - correct answerA G C U (uracil hydrogen bonds with A) What is the benefit of RNA being able to fold in a variety of shapes? - correct answerThe change in shape allows RNA to carry out various functions in cells, (in addi...

GCD Exam 2 Practice Test Comp 86 Questions (chp 9-13) with Verified Answers Which of the following could be the components of a single nucleotide found in DNA? a. Ribose, phosphate, and cytosine b. Deoxyribose, phosphate, and uracil c. Deoxyribose, phosphate, and adenine d. Ribose, phosphate, and uracil - CORRECT ANSWER c. Deoxyribose, phosphate, and adenine 2. Which of the following is NOT a feature of the DNA double helix? a. It obeys the AG/TC rule. b. There are 10 nucleotides...

Chapter 13 Practice Exam 42 Questions with Verified Answers Which of the following is a type of RNA that gets translated? A) rRNA B) mRNA C) tRNA D) miRNA E) A, B, and C all get translated. - CORRECT ANSWER B Which of the following RNA molecules are required for the process of translation? A) crRNA B) tRNA C) snRNA D) snoRNA E) siRNA - CORRECT ANSWER B Over time, DNA replaced RNA as the primary carrier of genetic information, and the chemical stability of DNA is believed to be...

Biochemistry Exam 3 Practice Tests 225 Questions with Verified Answers The complementary strand for the sequence 5' GCACTTCG 3' is - CORRECT ANSWER 5' CGAAGTGC 3' Polysomes...? (a) contain multiple mRNA's (b) contain multiple DNA's (c) contain multiple ribosomes (d) contain multiple RNA polymerases (e) a and c - CORRECT ANSWER (c) contain multiple ribosomes "Multiple ribosomes initiate on a SINGLE mRNA Polyribosomes or polysomes"- Ch 7 Proliferating cell nuclear ...