Structure of a dna strand - Samenvattingen, Aantekeningen en Examens

TEST BANK FOR GENETICS FROM GENES TO GENOMES 6TH EDITION BY HARTWELL – COMPLETE ALL CHAPTERS. Genetics: The Study of Biological Information 1) How does DNA structure relate to its function? - The order of nucleotides in a DNA strand specifies the order of amino acids in aIprotein. 2) What is a difference between the structure of DNA and proteins? - DNA is composed of nucleotides and proteins are composed of amino acids. 3) A genome can be best described as - the DNA in all chromosomes i...

WGU Biochemistry OA (Latest 2022/2023) Verified Answers Bohr Effect chart (low pH) C- High CO2 H- High H+ A- Acidic R-Release of O2(rt. Shift) T- tense state (in tissues) Primary structure Sequence of amino acids that make up a protein Secondary Structure Sequence of amino acids fold. Tertiary Structure -more folding in a 3D shape. -R groups (side chains) Quaternary Structure Protein has more than 1 polypeptide chain. Chemical reaction -absorb and release en...

Briefly explain how the base pairs A-T and C-G bond to each other and why the interactions they form are important to DNA unwinding. Base pairs form hydrogen bonds to each other. G and C form 3 hydrogen bonds, while A and T form 2 hydrogen bonds. These hydrogen bonds are weak electrostatic interactions that are able to hold the DNA together but are easily broken for the DNA to unwind. Why are telomerase inhibitors an attractive prospect for cancer therapies? >90% of cancer cells expres...

Purines and examples of them Purines contain two carbon-nitrogen rings and four nitrogen atoms. Adenine and guanine Pyrimidines and examples of them pyrimidines contain one carbon-nitrogen ring and two nitrogen atoms. Thymine and cytosine Structure of DNA DNA is a double helix (two helical strands.) The two strands are held together by the 'rungs', which are made of complementary pairs. The pairs are held together by weak hydrogen bonds. Arrangement of DNA antiparallel arrangement, ...

The model of DNA structure proposed by Watson & Crick after analysis of Rosalind Franklin's X-ray crystallography data stated that DNA is: Correct Answer-a double stranded helix DNA polymerase requires a template but not a primer to synthesize a new strand of DNA. Correct Answer-False Watson & Crick and Franklin also proposed (and we know now that this is true) that the backbone of the DNA molecule is composed of: Correct Answer-sugar + phosphate Type the letter of the strand that repr...

In his transformation experiments, what did Griffith observe? b. Mixing a heat-killed pathogenic strain of bacteria with a living nonpathogenic strain can convert some of the living cells into the pathogenic form. Cytosine makes up 42% of the nucleotides in a sample of DNA from an organism. Approximately what percentage of the nucleotides in this sample will be thymine? a. 8% At a specific area of a chromosome, the sequence of nucleotides below is resent where the chain opens t...

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...

Green River College: BIOL 100 Unit 3 Notes Latest Updated Chapter 6: Energy for life Learning Objectives: 1. Identify the cellular structure where photosynthesis occurs and describe its function. 2. State the overall chemical equation for photosynthesis. 3. Recognize what is meant by the terms reduction and oxidation. 4. Describe the function of photosynthetic pigments. 5. Explain the flow of electrons in the light reactions. 6. Explain how ATP and NADPH are generated in the light reac...

TEST BANK for Fundamentals of Molecular Virology 2nd Edition by Acheson. Package Title: Testbank Course Title: Acheson 2nd edition Chapter Number: 01 Question type: Multiple Choice 1) Which of the following terms describes the protein shell that surrounds the viral genome? a) capsid b) envelope c) matrix d) virion e) capsomere Answer: a 2) Which of the following would not be a nucleic acid form found in a viral genome? a) dsDNA b) ssDNA c) dsRNA d) ssRNA e) an RNA:DN...

Biology 104 Exam 1 Questions and Answers 100% Pass What is the fluid component of the cell called? Cytoplasm. What is the process by which cells take in nutrients from outside the cell by engulfing them? Endocytosis. What is the role of chlorophyll in photosynthesis? Chlorophyll absorbs light energy. What is the function of the cell membrane? It controls the movement of substances in and out of the cell. What is the semi-permeable structure surrounding the nucleus cal...