Pyrimidines - Guides d'étude, Notes de cours & Résumés

Biochem Module 6 (Portage Learning), CHEM 210 Biochemistry Questions and Answers 100% Graded A+ Updated 2024 In DNA, adenine always pairs with ________. - Thymine - Guanine - Uracil - Cytosine - CORRECT ANSWER-- Thymine DNA is built from which of the following? - Nucleosides - Genes - Purines - Nucleotide - Codons - CORRECT ANSWER-- Nucleotide The double helix of DNA is stabilized mainly by __________. - Ionic bonds - Covalent bonds - Ion-dipole bonds - Hydroge...

HESI A2 Biology v2 Questions and Answers Latest 2023 1. A patient receives an antibiotic for symptoms of the flu. Why doesn’t the medication work? a. The medication is for a different type of flu. b. The medication is not suitable for treating the flu. c. The medication is not a strong enough dosage amount to cure the patient. d. None of the above The correct answer is B. Antibiotics are used for treating bacterial infections, but the flu is caused by a virus. Although symptoms can be si...

Central Dogma - correct answerDNA-(Transcription) - RNA- (Translation) -Protein DNA Structure - correct answer1. Deoxyribose: 5 Carbon atoms are numbered 1' to 5' . Hydrogen attached to 2'. Sugar 2. Phosphate group Sugar-Phosphate backbone is asymmetric because PO4 groups connect the C5' of a sugar with the C3' of neighbouring sugar. = Asymmetric ends because the C5' end is attached to a PO4 and the C3' end is simply a hydroxyl group of the sugar. 3. Nucleic Acid: No-covalently bon...

USMLE STEP 1 BIOCHEMISTRY Questions and Answers with Complete Solutions 2024 histones are rich in which 2 AA's - ANSlysine & argenine Barr bodies (what, type of chromatin) - ANSinactive X chromosomes heterochromatin (highly condensed, sterically inaccessible) less condensed, transcriptionally active, sterically accessible chromatin - ANSeuchromatin DNA methylation at CpG islands - ANSrepresses transcription "CpG Methylation makes DNA Mute" DNA methylation (what is methylated and why...

Lab 7 Microbial Genetics & Genetic Engineering BIO250L Student Name: GILBBIN Access Code (located on the lid of your lab kit): AC-X6 Lab Report Format Expectations Utilize college level grammar and professional formatting when completing this worksheet. Submissions without proper formatting, all required photos or sufficient responses will be rejected. Pre-lab Questions 1. Why are the concepts in Lab 7 important in the field of microbiology? Microbial genetics forms the cornerstone of un...

(MB) ASCP Practice Exam Questions and Answers Which of the following is not a component of a nucleotide? Phosphate group Anti-codon Ribose sugar Nitrogen base - ANSWER Anti-codon According to Chargaff's rule of base pairing, adenine pairs with: - ANSWER Thymine What genes would be screened in a breast cancer panel? - ANSWER HER2, ERBB2, BRCA1 Next Generation Sequencing uses: - ANSWER Short sequence reads Purines and pyrimidines differ from each other in that: - ANSWER Purine...

BIOD101: Module 4 Pyrimidines and DNA Questions and Correct Answers 2023/2024 Compare and contrast purines and pyrimidines and provide examples of each. - Correct Answer Purines have 2 Carbon nitrogen rings and 4 nitrogen atoms (Ex: Adenine [A], Guanine [G]) Pyrimidines have 1 Carbon nitrogen ring and 2 nitrogen atoms. (Ex: Thymine [T], Cytosine [C]) Describe the structure and arrangement of DNA. - Correct Answer - DNA is a double helix - It has 2 strands held together by "rungs" ...

Central dogma Correct Answer-DNA -> RNA -> Protein Avery-MacLeod-McCarty experiment Correct Answer-demonstrated that DNA is the genetic material because degradation of DNA led to a cessation of bacterial transformation Nucleotides Correct Answer-Basic units of DNA molecule, composed of a sugar, a phosphate, and one of 4 DNA bases Key bonds in nucleotides Correct Answer-Glycosidic and ester bonds glycosidic bond Correct Answer-Between the base and the sugar forms at 1' Ester...

Central Dogma - ANSWER - DNA → RNA → Protein Purines - which bases? - how many rings? - ANSWER - Pyrimidines - which bases? - how many rings? - ANSWER - Remember: "Pyrimidine" has a "y" in it; so does "cytosine" and "thymine."

What is DNA? Correct Answer-A linear, double-stranded structure composed of multiple units of four different nitrogenous bases, each attached to a sugar molecule Bases are nucleoprotiens created from proteins we eat. They can be single ring structures (pyrimidines) or double-ring structures (purines). What are the pyrimidines and what are purines? Correct Answer-Adenine and Guanine are purines. Thymine and cytosine are pyrimidines What is the purpose of a gene? Correct Answer-To code for t...

What are the purines and pyrimidines? - Answer-purines: adenine, guanine pyrimidines: cytosine, uracil, thymine What are some examples of the cause of mutations in DNA? - Answer-cellular metabolism, UV light exposure, ionizing radiation, chemical exposure, replication errors What happens when the DNA is damaged/a mutation occurs? - Answer-cell cycle checkpoint activation, transcriptional program activation, DNA repair, apoptosis What is the definition of a gene? - Answer-A segment of D...