Intron splicing - Study guides, Class notes & Summaries

Genomics Midterm Exam Questions With Complete Solutions. DNA is a polymer composed of all of the following EXCEPT: a. nitrogenous base b. 5-carbon sugar c. codon d. phosphate group c codon = 3 nucleotide sequence Which of the nitrogen-containing bases are purines? a. adenine b. cytosine c. thymine d. guanine a, d cytosine and thymine are pyrimidines In a DNA sequence, adenine nitrogen base pairs with _________, while guanine pairs with _________. a. uracil, thymine b. th...

Tutorial: Interpretation of gene models A gene model depicts the exon-intron structureof a gene. A gene model also shows how many transcriptsare made through choice of alternative promoters, and by alternative splicing and alternative 3ʼend processing (e.g. use of alternative polyA sites or terminal exons). Gene models can also indicate how many proteins are made from a gene. The following slide is a graphical summary of parts that can vary in a gene through alternativetrans...

formation of macromolecules by condensation reactions - subunits are added to one end of a growing chain by dehydration synthesis What Constrains the size of a cell? - The ratio of surface area to volume. Smaller cells have a greater surface area to volume ratio. Miller-Urey experiment - recreated conditions thought to exist in the atmosphere of primitive earth. No Oxygen! Used heat to simulate sun, electric discharge to simulate lightning, and cooling to condense molecules to liquid form...

Genetics final study guide intro to molecular genetics mls 400 oakland Genetics Final Exam Important definitions Base: pyrimidines & purines (C, U, T) (A, G) Nucleoside: base + sugar (phosphorylated to become a nucleotide) Nucleotide: phosphate group + sugar + base Sugar may be ribose (RNA) or deoxyribose (DNA - missing hydroxyl group) Antiparallel: 2 sequences have opposite orientation with regard to their 5’ & 3’ ends Complementary: AT/GC rule; purines bond to pyrimidines, and vice ...

RNAS-C Practice Exam 1|49 Questions with Verified Answers What type of RNA specifies the amino acid sequence of a particular protein? a. miRNA b. tRNA c. mRNA d. rRNA e. Both c and d are correct answers. - CORRECT ANSWER mRNA A nucleic acid is a. a polymer of nucleotides. b. hydrophobic. c. linked to an amino acid via a peptide bond. d. a form of energy storage in the cell. e. linked to other nucleic acids by covalent bonds between bases. - CORRECT ANSWER A polymer of nucleot...

absorbance (aka. extinction/optical density) correct answers logarithmic measure of the amount of light absorbed as the light passes through a sample or substance; 0-2 au amplitude correct answers height of a wave (power); determines the pitch of sound waves autonomy correct answers respect for persons, allowing for informed consent beneficence correct answers do no harm, known as utilitartianism bioethics correct answers study of decision-making as it relates to moral decisions that...

You discover a new bacterial operon that is induced by the presence of lead. You find a mutation that results in a mutation in the operator that changes the binding sequence so that the repressor is always bound to it. Would this mutation be rescued by a plasmid with a wild type copy of the operon and why? correct answers Yes, because the repressor would still be able to bind to the operator in the plasmid allowing for normal expression from the plasmid Why is it difficult to find a treatment...

BCH 5413: 1-4 TEST QUESTIONS WITH ALL CORRECT ANSWERS Name 3 characteristic of Z-DNA - Answer-* Left-handed helix * 12bp per helical turn * Major groove flattened, nearly gone Fragile DNA is associated with - Answer-AT-rich cruciform To increase the melting temperature of DNA, you need to increase which two? a) bases b) salt c) phosphate d) AT e) coiling f) GC - Answer-b) and f) What does the genome consist of? - Answer-Chromosomes (linear DNA molecules with many genes) ...

BIOL200 SimUText questions with Complete Solutions what is the function of a gene? to contain information for building specific cellular products what proteins are encoded by genes? proteins that maintain cell membranes proteins that help convert sugar to energy protein channels that allow molecules in and out of cells When cells make proteins, is the gene in the DNA destroyed or used up in the process? No, the information in DNA is copied into a molecule of RNA How are DNA, RNA and polypepti...

MMSC 490 Exam 2 Questions and Answers All Correct The genomes of salamanders contain ten times more DNA than the genomes of humans because salamanders - Answer-have more noncoding DNA than humans have. A gene can be defined as a segment of DNA that codes for - Answer-functional product. Introns in mRNA-coding genes are the transcribed sequences - Answer-between protein-coding sequences. In the nucleus, introns are removed from transcripts by - Answer-splicing introns can encode - Ans...