Pre mrnas - Study guides, Class notes & Summaries

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...

TAMU bio 111 lab exam 2 review (2023/2024) already passed What is the difference between the coding and non-coding region? Coding region: comprised of genes that encode proteins (instructions that determine traits) and makes up 1-2% of human DNA. • Noncoding region: makes up 98-99% of human DNA, contains STRs and is responsible for regulatory functions such as gene transcription. What are STRs? Short-tandem repeats (STRs) are unique repeating patterns of the same nucleotide sequence. They can ...

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 ...

Virology Practice Test 32 Questions with Verified Answers The difference between "simple" retrovirus and "complex" retrovirus is? A) "Simple" retroviruses do not cause disease B) "Complex" retroviruses contain additional genes called accessory genes C) "Simple" retroviruses do not cause tumors D) "Complex" retroviruses carry viral oncogene E) Only "complex" retroviruses produce provirus - CORRECT ANSWER B, E What is the first biosynthetic event that occurs in cells i...

What is an Okazaki fragment? - short sections of DNA What is complementary base pairing? What is the complement of 5'-CGCATGTCAGC-3'? - GCGTACAGTCG What is the structure and function of the different parts of the leaf (mesophyll and stomata)? - Mesophyll is the green material of a leaf that allows the plant to enact the process of photosynthesis. stomata is the openings or pores in the leafs that allow for gas exchange Know the chemical equation for photosynthesis. - 6CO2 + 6H2O + sunli...

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...

Test Bank Principles of Anatomy and Physiology, 12th Edition, by Bryan Derrickson, Gerald Tortora Testbank Chapter 1. An Introduction to the Human Body Multiple Choice 1. This is the study of the functions of body structures. a. Anatomy b. Physiology c. Dissection d. Histology e. Immunology Ans: B Difficulty: easy Feedback: 1.1 2. This is defined as a group of cells with similar structure and function. a. Tissue b. Organ c. Molecules d. Compounds e. Organism Ans: A Difficulty: easy Feedback: 1.2...

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...

During Drosophila development, sex-lethal and transformer are a. miRNAs b. siRNAs c. involved in RNA editing d. splicing regulatory factors e. transcription factors - answer-d. splicing regulatory factors The consensus sequence for poly(A) addition is a. G/C upstream of the poly(A) tail addition site. b. AAUAAA. c. TATAAA d. a and b e. none of the above - answer-b. AAUAAA. Which of the following statements is true? a. ATP powered pumps allow movement in the direction o...

The diffraction limited resolving power of a standard light microscope is approximately? correct answers 0.2 micro meter Studies on which model experimental organism led to the initial discovery of important mechanisms controlling the development of the animal body plan? correct answers Drosophila melanogaster Because the genetic code usually has more than one codon for each amino acid, the code is said to be correct answers degenerate Vectors for expressing a eukaryotic protein in a ba...