Double helix - Study guides, Study notes & Summaries

Penn Foster Biology Chapter 10 Questions and Answers Rated A+ What is the main function of DNA in cells? To store and transmit genetic information that guides the development and functioning of organisms. What are the building blocks of DNA called? Nucleotides. What are the three components of a nucleotide? A phosphate group, a sugar molecule, and a nitrogenous base. What is the structure of DNA known as? A double helix. Which bases are paired together in DNA? Aden...

Exam 1: BIOS 252 / BIOS252 (2024/ 2025 Update) Anatomy and Physiology II Exam Review| Guide with Questions and Verified Answers| 100% Correct| Rated A -Chamberlain Q: Enzymes and their function -type of protein, chemical catalysts help chemical reaction occur Chamberlain Q: List and describe the chemical structure/components of DNA Answer: -Used as the cell's "master code" for assembling proteins -uses deoxyribose as sugar and A, T(not U), C, and G as bases -form...

NIU Bios 209 Final Exam-King Questions with Verified Solutions **Biology and Ecology** What term describes the characteristics of a system that arise from the interactions among its components, but cannot be predicted by studying the components in isolation? Emergent properties. What is a continuous piece of DNA within a cell called, which can exist as a line or loop/circle? A. Mitochondrial DNA B. Chromosome C. Nucleotide D. Gene E. DNA helix B. Chromosome Defin...

Bio Exam 3 Questions and Answers 100% Pass What did Griffith discover in his experiment involving bacteria with capsule (S) and non-capsule (R) strains, and what molecule did Avery, MacLeod, and McCarty identify as responsible for this phenomenon? Griffith observed that DNA could transform bacteria, demonstrating for the first time that genetic material can be transferred through a process called transformation. The S-strain, with a polysaccharide capsule, is protected from the immune...

AP Biology Exam Review 2024/2025 with Complete Solutions Protein A three dimensional polymer made of monomers of amino acids. primary structure sequence of amino acids secondary structure Either an alpha helix or beta pleated sheet due to the interactions of H-bonds tertiarty structure R-group interactions cause further folding to contribute to the overall globular protein shape quarternary structure The overall protein structure that results from the aggregation of two or more po...

ASCP Molecular Biology Certification Exam Questions and Answers 100% Pass Pyrimidine One carbon ring Cytosine, Thymine, Uracil What is the function of mRNA? Carries genetic info out of nucleus Transcript translated to protein What is the function of tRNA? Carries aa to ribosome Anticodon pairs with codon on mRNA strand What is the function of rRNA? part of ribosome structure most abundant RNA coordinated coupling of tRNA to mRNA codons Feedback inhibition Product of pathway is noncompetiti...

Eukaryotic Chromosomes - ️️The multiple linear chromosomes in a eukaryotic nucleus are highly condensed Degree of coiling and packing changes throughout cell cycle Interphase: relatively more relaxed = less condensed Mitotic phase: relatively more compact = fully condensed for movement of individual chromosomes during cell division Genome size - ️️The genomes of different species contain different amounts of DNA. The complexity of an organism doesn't necessarily match the amou...

EXAM 1 BIOS 242- CHAMBERLAIN ALREADY PASSED DNA is replicated in the ___ nucleus RNA is replicated in the ___ cytoplasm what is the first step in viral replication? penetration/adhesion (attaches to membrane using spikes) what is the second step in viral replication? uncoating what is the third step in viral replication? replication what is the fourth step in viral replication? assembly what is the fifth step in viral replication? maturation what is the sixth step in viral replication? r...

BIOS 260 Chapter 2 with Verified Solutions 1. The nucleotides in DNA are held together in a double-stranded helix, list the specific pair of bases that bond to form a DNA molecule. What is the

The structure of a strand of DNA. - it is a double helix, like a twisted ladder. the ladder rings are nucleotide subunits and they have a covalent bond to the sugar phosphate backbone (made of deoxyribose and a phosphate group) What are the nucleotide subunits? - adenine, guanine, cytosine, and thymine How are the subunits held together? - through a hydrogen bond What are the nucleotide subunits compliments? - Adenine and thymine cytosine and guanine How does DNA replicate? - the parent s...