
Concept explainers
Introduction:

Answer to Problem 1SQ
Correct answer:
Viruses can have a genome of either RNA or DNA. Hence, the correct answer is option c.
Explanation of Solution
Reason for correct answer:
Option c. is given as “Viruses.”
A virus is a noncellular infectious particle that replicates only inside a living cell. Their genome consists of RNA or DNA that may be single-stranded or double-stranded.
Reason for incorrect answer:
Option a. is given as, “Bacteria.”
Bacteria are single-celled and have a porous cell wall around their plasma membrane. A single circular double-stranded DNA is present in the cytoplasm. This indicates that bacteria contains DNA only. Hence, option a. is incorrect.
Option b. is given as, “Viroids”.
Viroids are plant pathogens and have single stranded RNA. Hence, option b. is incorrect.
Option d. is given as, “Archaea.”
Archaea are the prokaryotic organisms that are similar to bacteria in many respects. They have a single circular chromosome like bacteria. This indicates that archaea contains only DNA in their genome. Hence, option d. is incorrect.
Hence, the options a., b., and d. are incorrect.
The genome of virus consists of either RNA or DNA. Thus, the correct option is c.
Want to see more full solutions like this?
Chapter 19 Solutions
EBK BIOLOGY: CONCEPTS AND APPLICATIONS
- 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
- Medical Terminology for Health Professions, Spira...Health & NutritionISBN:9781305634350Author:Ann Ehrlich, Carol L. Schroeder, Laura Ehrlich, Katrina A. SchroederPublisher:Cengage Learning
- Comprehensive Medical Assisting: Administrative a...NursingISBN:9781305964792Author:Wilburta Q. Lindh, Carol D. Tamparo, Barbara M. Dahl, Julie Morris, Cindy CorreaPublisher:Cengage LearningBasic Clinical Lab Competencies for Respiratory C...NursingISBN:9781285244662Author:WhitePublisher:CengageConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College



