Tata box Samenvattingen, Aantekeningen en Examens

Uitgebreide samenvatting van het onderdeel DNA op VWO niveau, inclusief handgemaakte illustraties & YouTube linkjes voor uitlegvideos voor extra duidelijkheid. Ook vind je verwijzingen naar de juiste Binas tabellen. Ik had een 8 op deze toets. In deze samenvatting onder andere uitleg over: - Opbouw DNA ( nucleotiden, stikstofbasen, 5-einde & 3-einde, histonen, nucleosoom, mtDNA, short tandem repeat ) - DNA replicatie ( primase, ligase, DNA polymerase, ozakifragmenten, PCR techniek ) ...

What modification neutralizes the charges on histones and looses up the interactions between histones and DNA? - Answer- ACETYLATION Two types of post-transcriptional modifications that take place in the mRNA of eukaryotes - Answer- the addition of a CAP at the 5' end of the transcript and the addition of a POLY A sequence at the 3' end of the message Nucleic acid blotting is widely used in recombinant DNA technology. In a Southern blot one generally - Answer- Hybridizes filter-bound DNA w...

Aminoacyl-tRNA syntheses are enzymes that.... correct answers attach amino acids to specific transfer RNAs Which of the following statements about introns is true? correct answers Some types of organisms generally do not have introns The primary function of factor EF-G is to... correct answers move the peptide-tRNA from the A site of the ribosome In bacteria, mRNAs are.... correct answers transcribed and translated simultaneously The combined sizes of prokaryotic and eukaryotic ribos...

What does it mean to say that regulatory sequences are in cis? Correct Answer-they are one the same chromosome as the genes that they control Describe the distance between transcription regulator binding sites and the TATA box. Correct Answer-the transcriptional regulator binding sites are often really far away from the start of genes (10's of thousands of bp's long) If you see the TATA box on a strand of DNA, you know that this is the ________ of a gene. Correct Answer-promoter How w...

The tryptophan operon is a repressible operon that is: - ANSWER-Turned off whenever tryptophan is added to the growth medium. The lactose operon is likely to be transcribed when: - ANSWER-The cyclic AMP and lactose levels are both high within the cell. For a repressible operon to be transcribed, which of the following must occur? - ANSWER-RNA polymerase must bind to the promoter, and the repressor must be inactive. Which of the following, when taken up by the cell, binds to the represso...

which of the following statements regarding a DNA double helix is always true? - the amount of adenine is equal to the amount of thymine, and the amount of guanine is equal to the amount of cytosine working in a coroner's office, you are investigating the mysterious death of a person found in the wooded area in the spring of the year. during a cellular analysis of this body, you learn that the levels of mRNA that can be obtained from critical tissues are very low, and you find mushrooms in...

Problem Sets BIOL 111 – Fletcher LATEST ACTUAL EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+ A particular eukaryotic protein is 800 amino acids long. Which of the following could be the maximum number of nucleotides in the coding sequence of the mature mRNA that codes for the amino acids in this protein? - CORRECT ANSWER 2,400 The purpose of a spliceosome is to: - CORRECT ANSWER remove introns and bring together exons in an mRNA molecule Proto-oncog...

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...

BIO 111 FINAL EXAM QUESTIONS AND ANSWERS LATEST 2024/2025 (100% CORRECT) What is the first mRNA processing step? - ANSWER 5' capping Different mRNAs are made from the same initial pre-mRNA by ________. - ANSWER alternative splicing RNA transcription begins at a ________. - ANSWER promoter ________ protect(s) the pre-mRNA molecule. - ANSWER the 3' poly-a tail The process of pre-mRNA splicing removes ________. - ANSWER introns Spliced ________ differ in their exons. - ANSWER mRNAs Identif...

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...