Pyramidines - Study guides, Revision notes & Summaries

Core Promoter Elements ~~> TATA box = repetitive sequence of thymine and adenine Initiator (INR) = sequence of pyramidines like thymine and cytosine DPE = downstream promoter elements found along the DNA Common to have >1 promoter but not all of them CpG islands ~~> Sequences high in CG frequency. They are able to escape methylation which would lead to gene silencing. Demethylation would lead to over expression of genes. Regulatory Promoter Elements ~~> UAS and URS f...

What are the essential steps of a signaling cascade? correct answer: Signal, receptor, outcome What is a cascading signal pathway? correct answer: One signaling molecule elicits responses in multiple regions What genes exist at each checkpoint in the cell cycle? correct answer: Tumor supresor genes How does evolution occur in the prokaryotic (single cell) organism? correct answer: Antibiotics. Although selective forces must be in play for evolution to occur. What method do prokar...

Oswald Avery - ️️Identified the substance causing bacterial transformation. We now know that the gene for the enzyme that catalyzes the synthesis of polysaccharide capsule, which makes the bacterial colony look "smooth," was transferred into the R cells during transformation. Nucleic acids - ️️polymers specialized for the storage, transmission, and use of genetic information. Two types- DNA and RNA. grow in the 3'-5' direction DNA - ️️macromolecule that encodes here...

PORTAGE LEARNING BIOD 101 MODULE 4 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Nitrogenous bases of DNA Adenine Guanine Thymine Cytosine Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms Purines - A and G Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms Pyramidines - T and C Deoxyribose sugar chemically linked to each base in DNA Nucleoside base + deoxyribose Nucleotide base + deoxyribose + phosphate group complementary pairs purine always pairs with pyramidine (T+A), (C+...

PORTAGE LEARNING BIOD 101 MODULE 4 EXAM QUESTIONS WITH COMPLETE SOLUTIONS Nitrogenous bases of DNA Adenine Guanine Thymine Cytosine Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms Purines - A and G Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms Pyramidines - T and C Deoxyribose sugar chemically linked to each base in DNA Nucleoside base + deoxyribose Nucleotide base + deoxyribose + phosphate group complementary pairs purine always pairs with pyramidine (T+A), (C+...

Nucleic Acids are - correct answer DNA and RNA Types of Mutations - correct answer 1. Deletion 2. Duplication 3. Insertions 4. Tranlocation Translocation - correct answer DNA is excahnged in reciprocal way from one chromosome to another Epigenetic Mechanisms - correct answer -Changes in the phenotype -...

What are the three disaccharides? - Answer-sucrose, lactose, and maltose What are the two components of sucrose? - Answer-glucose + fructose What are the two components of lactose? - Answer-glucose + galactose What are the two components of maltose? - Answer-glucose + glucose Enzymes are almost always considered to be __________ - Answer-proteins But sometimes RNA can act as an___________ - Answer-enzyme (example- ribozymes) Reverses a protein to its primary structure - Answer-...

MTM-Final Exam Basic Science Ionized forms like A- and BH+ are ________ and ______ diffusible across membrane water; poorly generic equation used to calculate week acidic and basic drugs 10 ^(pka-pH) = protonated/unprotonated equation to calculate weak acidic drugs 10^(pka-pH) = [nonionized(HA)]/[ionized(A-)] equation to calculate weak basic drugs 10^(pka-pH) = [ionized (BH+)]/[nonionized(B0] if the pka and pH difference is 1 or -1: ionization is 90% or 10% if the pka and pH differe...

DNA carry genetic information, double-stranded, more stable RNA intermediate of gene expression, single-stranded, less stable tRNA transfer RNA, holds amino acid for protein synthesis wobble position looser binding, pairing of 3rd codon less critical inosine closely resembles G, can pair with A, U, or C, allows tRNA flexibility rRNA ribosome RNA, makes up ribosomes siRNA small interfering RNA, double-stranded, mRNA degradation #Examify | #OnlineExams | #TestPrep | #StudyReso...

Portage BIOD 101 Module 4 Practice Question with Correct Solutions 2023/2024 Nitrogenous bases of DNA - Correct Answer Adenine Guanine Thymine Cytosine Contain 2 carbon-nitrogen rings, and 4 nitrogen atoms - Correct Answer Purines - A and G Contain 1 carbon-nitrogen ring, and 2 nitrogen atoms - Correct Answer Pyramidines - T and C Deoxyribose - Correct Answer sugar chemically linked to each base in DNA Nucleoside - Correct Answer base + deoxyribose Nucleotide - Correct Answe...