Double helix structure - Study guides, Class 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...

7Q1-Describe the double helix nature of DNA. Why is it that DNA is always found as a double stranded, antiparallel and complementary molecule? Correct Answer-The two strands of DNA run in anti-parallel directions and attached to each sugar is one of four types of nitrogenous bases, which make hydrogen bonds. It is antiparallel and complementary so that it has two copies as a safety measure. 7Q2-What are histones and the structural components(DNA/proteins)of a nucleosome? Correct Answer-Histon...

LIFESCI 2G03 Test 1 Questions and Answers Already Passed Question: What is the main function of enzymes in biological systems? Answer: Enzymes act as catalysts that speed up chemical reactions by lowering the activation energy required for the reaction to proceed. Question: How does the structure of DNA enable it to carry genetic information? Answer: DNA's double-helix structure, composed of nucleotide pairs (adenine with thymine and cytosine with guanine), allows it to store and...

Rio Salado Bio 205 Midterm Questions and Answers Graded A+ What is the primary function of the mitochondria in a cell? The primary function of the mitochondria is to produce ATP, which provides energy for cellular activities. How do enzymes affect the rate of biochemical reactions? Enzymes increase the rate of biochemical reactions by lowering the activation energy required for the reaction to proceed. What is the role of ribosomes in a cell? Ribosomes are responsible for s...

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...

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...

NMU BI-112 Exam 1 Questions and Answers Already Passed What defines a living organism at the cellular level? A living organism is defined by the presence of one or more cells that exhibit characteristics of life, such as metabolism, growth, and response to stimuli. How do monosaccharides contribute to larger carbohydrate structures? Monosaccharides serve as the building blocks for larger carbohydrates like disaccharides and polysaccharides through glycosidic bonds. What structura...

BIO 181 - Ch. 5,6,7Difference between Monomers and Polymers - correct answer Polymer is a chain of smaller molecules - Monomers Deoxyribonucleic Acid (DNA) - correct answer stores genetic information, replicated using proteins. Stays in the nucleus. Very Stable - Lacks one Oxygen atom in 2'C position Structure of DNA - Primary Structure - correct answer Sequence: -stabilized by phosphodiester bonds Structure of DNA - Secondary Structure - correct answer Double Helix: -has 2 strands...

ISTM 210 - Exam 1 Phinney Exam 2024 Questions & Answers 100% CorrectISTM 210 - Exam 1 Phinney Exam 2024 Questions & Answers 100% CorrectISTM 210 - Exam 1 Phinney Exam 2024 Questions & Answers 100% CorrectISTM 210 - Exam 1 Phinney Exam 2024 Questions & Answers 100% Correct Rosalind Franklin - ANSWERSWatson, Wilkins, and Crick exploited this biophysicist's work in co-discovering the double helix DNA structure Cloud - ANSWERSallows us to get subscriptions to any software we need instead of eve...

Honors Biology 10th grade Exam Review with Verified Solutions What is the term for the cellular process where cells convert glucose into energy in the form of ATP without using oxygen? Fermentation What is the name of the structure that helps in organizing microtubules during cell division in animal cells? Centriole What is the term for the process by which cells remove waste products through vesicles fusing with the cell membrane? Exocytosis What is the name of the p...