Concept explainers
Briefly describe the components of DNA, and explain its functional relationship to RNA and protein.

To review:
The components of DNA and its functional relationship to RNA and protein.
Introduction:
Deoxyribonucleic acid (DNA) is a molecule that carries the genetic information from one generation to the next. DNA is said to be the functional unit in all living organisms. The genetic information is stored as a code.
Explanation of Solution
Deoxyribonucleic acid is made up of four different deoxyribo nucleotides. They are deoxyadenosine triphosphate (dATP), deoxyguanosine triphosphate (dGTP), deoxycytosine triphosphate (dCTP), and deoxythymidine triphosphate (dTTP). Each deoxyribonucleotide is formed by the combination of four different nitrogenous base, deoxyribose and phosphates. They form the back bone of DNA with the phosphate group. The four chemical bases of DNA are adenine (A), guanine (G), cytosine (C), and thymine (T).
DNA is transcribed into mRNA (messenger RNA) and the mRNA sequence contains a number of codons. These codons are recognized by anti-codon region of t-RNA for the synthesis of proteins in the rough endoplasmic reticulum by adding amino acids. Later, the newly synthesized proteins undergo posttranslational modifications in order to become active functional proteins. Thus, the protein structure and their functions are decided by the DNA and RNA.
DNA is the hereditary material in almost all living organisms. In an organism, each cell has the same amount of DNA. Mostly DNA is located within the nucleus and it is called as the nuclear DNA. The small amount of DNA is present in mitochondria and it is called as the mitochondrial DNA.
Want to see more full solutions like this?
Chapter 8 Solutions
Pearson eText Microbiology: An Introduction -- Instant Access (Pearson+)
Additional Science Textbook Solutions
SEELEY'S ANATOMY+PHYSIOLOGY
Campbell Essential Biology (7th Edition)
HUMAN ANATOMY
Microbiology Fundamentals: A Clinical Approach
Human Physiology: An Integrated Approach (8th Edition)
- The following table is from Kumar et. al. Highly Selective Dopamine D3 Receptor (DR) Antagonists and Partial Agonists Based on Eticlopride and the D3R Crystal Structure: New Leads for Opioid Dependence Treatment. J. Med Chem 2016.arrow_forwardThe following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. You are a chef in a fancy new science-themed restaurant. You have a recipe that calls for 1 teaspoon of resinferatoxin, but you feel uncomfortable serving foods with "toxins" in them. How much capsaicin could you substitute instead?arrow_forwardWhat protein is necessary for packaging acetylcholine into synaptic vesicles?arrow_forward
- 1. Match each vocabulary term to its best descriptor A. affinity B. efficacy C. inert D. mimic E. how drugs move through body F. how drugs bind Kd Bmax Agonist Antagonist Pharmacokinetics Pharmacodynamicsarrow_forward50 mg dose of a drug is given orally to a patient. The bioavailability of the drug is 0.2. What is the volume of distribution of the drug if the plasma concentration is 1 mg/L? Be sure to provide units.arrow_forwardDetermine Kd and Bmax from the following Scatchard plot. Make sure to include units.arrow_forward
- Choose a catecholamine neurotransmitter and describe/draw the components of the synapse important for its signaling including synthesis, packaging into vesicles, receptors, transporters/degradative enzymes. Describe 2 drugs that can act on this system.arrow_forwardThe following figure is from Caterina et al. The capsaicin receptor: a heat activated ion channel in the pain pathway. Nature, 1997. Black boxes indicate capsaicin, white circles indicate resinferatoxin. a) Which has a higher potency? b) Which is has a higher efficacy? c) What is the approximate Kd of capsaicin in uM? (you can round to the nearest power of 10)arrow_forwardWhat is the rate-limiting-step for serotonin synthesis?arrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage LearningBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning





