Phosphodiester bonds - Study guides, Revision notes & Summaries

DNA is negatively charged because a. the ribose sugars of DNA are positively charged b. the ribose sugars of DNA are negatively charged c. the nitrogenous bases are negatively charged d. the phosphate backbone of DNA is negatively charged e. DNA is not acidic : d. the phosphate backbone of DNA is negatively charged DNA replication is a. semi-conservative b. dispersive c. conservative d. error prone : a. semi-conservative Define DNA helicase : unwinds DNA; that is, breaks the hydrog...

ASCP Molecular Biology Certification Exam 2024 Pyrimidine - Answer ️️ -One carbon ring Cytosine, Thymine, Uracil Purine - Answer ️️ -Two carbon rings Adenine, Guanine How are nucleotides joined together? - Answer ️️ -Condensation to form phosphodiester bond What is the function of mRNA? - Answer ️️ -Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? - Answer ️️ -Carries aa to ribosome Anticodon pairs with codon on mRNA ...

BIO 441A EXAM 3 STUDY GUIDE WITH COMPLETE SOLUTION. LECTURE ONE - METABOLISM INTRODUCTION ● Autotrophs synthesize all their own cellular constituents from simple molecules ● Heterotrophs obtain energy through oxidation of organic compounds and therefore rely on autotrophs ● Metabolism involves many reactions such as ○ Glycolysis/gluconeogenesis ○ The citric acid cycle ○ Oxidative phosphorylation ● Catabolism is the degradation of biomolecules ○ Energy rich nutrients are...

A nucleotide is made up of what 3 components?phosphate group, pentose sugar (deoxyribose in DNA and ribose in RNA), and a nitrogenous base What nitrogenous bases are purinesAdenine and Guanine What nitrogenous bases are pyrimidines?cytosine, thymine, uracil How can you differentiate between purines and pyrimidines?purines are double-ringed while pyrimidines are single-ringed What are the differences between DNA and RNA?DNA: double stranded, has deoxyribose sugar(hydroxyl group at 2' carb...

BTECH Review Exam 2 Questions & Answers 2024/2025 what applies to bacteriophages? - ANSWERSBacteriophages recognize molecules on bacterial surface to infect All phages use the hosts replication machinery to some extent Most phages have narrow host range Bacteriophage genomes can be RNA, but mostly DNA In vitro transcription of the SARS-2 spike gene makes use of the __________ - ANSWERST7 gp10 promoter The antirestriction protein of T7: - ANSWERSprotects T7 DNA from bacterial...

d. Deoxyribonucleic acid (DNA) - ACCURATE ANSWERS 1. The following sequence ATTCGCTATCG could be found in: a. Ribonucleic acid (RNA) b. Protein c. Glycogen d. Deoxyribonucleic acid (DNA) b. peptide bond - ACCURATE ANSWERS 2. In the formation of a macromolecule, what type of bond would join two amino acid subunits? a. phosphodiester bond b. peptide bond c. Ionic bonds d. Hydrogen bonds a. primary structure - ACCURATE ANSWERS 3. The sequence of amino acids in a polypeptide is known ...

Why would covalent bonds break in water? Why can they? - Because more stable or energetically favored bonds could be formed. They can break because the loss of energy by breaking hydrogen bonds in compensated for in the formation of new covalent bonds. Limitation to eukaryotic cells and photosynthesis - The sea slugs that live in symbiotic relationships with cyanobacteria or algae. The algae is not broken down or digested and absorbed into the slug's body. There is then a horizontal gene t...

which of the following components of an amino acid differs from one amino acid to another - Answerthe R group Sometimes atoms gain or lose particles. The loss of which of the following would result in a change of overall electrical charge? - Answer-protons or electrons what is the cell theory - Answer-1. theof cells A pair of shared valence electrons is referred to as a(n) - Answer-covalent bond scientists wanted to track the movement of specific organic molecules in a cell by using radioac...

Praxis Biology Content Knowledge 5236 Exam Questions And Answers (Updated And Verified) A teacher asks students to describe how the data collected in an experiment are typically used as evidence. Which of the following responses is the most accurate? A."The data are used to confirm an existing belief." B."The data are used as facts that cannot be questioned or criticized." C."The data are used to support or reject a hypothesis." D."The data are used to make a theory into a law." ...

________________ are polymers of monosaccharide monomers - polysaccharides acids - donates protons, H+ is in higher concentration aldose - carbonyl group at end of carbon chain alpha linkage - starch (more for energy storage) amino groups - attract a proton and act as bases anion - gains electrons, negative charge atomic number - number of protons, orders the elements atomic weight - mass of all the naturally occurring isotopes bases - bases - accept protons beta linkage - cellulose (m...