Q no 1 :-
The three structural differences between RNA and DNA are
i) RNA is a single stranded nucleic acid while DNA is double stranded nuclei acid.
ii) The nucleotidic base in RNA is uracil while as in DNA it is thymine.
iii) RNA has ribose sugar while as DNA has deoxyribose sugar.
PRE-LAB QUESTIONS 1. List three structural differences between DNA and RNA 2. Why is it necessary...
List three differences between DNA and RNA
Laboratory 34 Report Sheet - Lab 34 B. Extraction of DNA B.2 Appearance under a microscope DNA Source B.1 Texture and Appearance Questions and Problems Q.1 Why is it necessary to heat the DNA source and buffer mixture? Laboratory 34 Transfer the DNA from the glass rod to a paper towel and let et 17 dry. 18 Observe the DNA obtained by other student teams with ditferent DNA sources, or repeat the procedure above with another DNA souroe. Check when...
7. List at least 3-4 differences between DNA and RNA and list all 5 types of RNA and write what they stand for in one sentence? 7 pts
Pre-Lab Questions Student: Pre-Lab Questions are to be completed BEFORE entering class for this lab. To be submitted to your instructor for evaluation. QUESTIONS: 1. The four nitrogenous bases in DNA are , and DNA is composed of subunits called 2. The backbones or sides of the DNA ladder are composed of 3. and 4. The biologically important weak bond that holds the two strands of DNA together is a The sugar in DNA is , and the sugar in...
• What are 2 differences between RNA and DNA? • The suffix –ase shows that a molecule is a(n) _ • DNA template: TTA GCG GTA ATC CAT AAG CGT • becomes ... • NEW DNA: • T pairs with A • G pairs with C
DNA Extraction Watch DNA extraction video DNA Modeling Post-laboratory questions: New lab manual page 44 1. Why do we use a commercially grown fruit in this case strawberries) for our DNA extraction? 2. What does the detergent accomplish in a DNA extract? 3. What does the salt accomplish in a DNA extract? 4. What does the addition of rubbing alcohol isopropanol) accomplish in the DNA extract? 5. Why does the solution become viscous after the addition of shampoo (detergent)? Students...
Experiment 7 Types of Chemical Reactions 49 QUESTIONS PRE LAB 1. List three specific safety instructions that are relevant to this lab. TO 2. List three observations that might suggest that a chemical reaction has occurred. 3. What observation would you expect to make when red litmus paper is exposed to a basic solution? 4. What is another word for a solid that is produced from the chemical reaction between two aqueous solu- tions?
1. What is the source of the “spacer” DNA in the bacterial CRISPR locus? 2. Why does the cas9 enzyme have two nuclease domains? 3. What is the relationship between the tracrRNA and the regularly interspersed repeats of the CRISPR locus? Why is this important? 4. In the lab version of the CRISPR/cas9 system, what is the “chimeric RNA”?
Part A: How do proteins differentiate between ssRNA, dsRNA, DNA-RNA hybrids, and dsDNA? Part B: Why are the alpha helix and the beta sheet the most common secondary structure elements? Part C: Describe the two ways proteins can interact with DNA, and the differences between both. Which is similar to the RNA recognition motif?
1. Read through the INTRODUCTION. Answer the questions in
between each historical section.
PRE-LAB: LAB EXERCISE 7 Directions: Use the lab manual to answer the following questions in COMPLETE SENTENCES AND IN YOUR OWN WORDS. Use your own handwriting, do NOT type! 1. Read through the INTRODUCTION. Answer the questions in between each historical section: . . . . m . N m - N The Evidence : 1869-1924 1869: DNA, first called nuclein, is identified in cell nuclei of...