Bio statistics and informatics

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Questions and Answers

Used to represent molecular structures in two dimensions, highlighting bonds and connectivity.

  • 2D Drug Models (correct)
  • 3D Drug Models
  • Molecular Descriptors
  • Database Searches

Provides spatial representation, essential for understanding molecular interactions and receptor binding.

  • 2D Drug Models
  • Molecular Descriptors
  • Database Searches
  • 3D Drug Models (correct)

Calculated properties of molecules that help in predicting drug behavior, such as solubility and bioavailability.

  • 2D Drug Models
  • 3D Drug Models
  • Molecular Descriptors (correct)
  • Database Searches

Helps find existing molecular descriptors to compare new drugs against known compounds.

<p>Database Searches (D)</p> Signup and view all the answers

Includes histograms, scatter plots, and pie charts for visualizing trends in medical data.

<p>Graphical Representation (A)</p> Signup and view all the answers

Helps find existing molecular descriptors to compare new drugs against known compounds.

<p>Statistical Calculations (A)</p> Signup and view all the answers

Determines drug formulation (tablet, injection, capsule) and how it dissolves in the body.

<p>Pharmaceutical Phase (A)</p> Signup and view all the answers

Examines how drugs interact with receptors and produce effects at the cellular level.

<p>Pharmacodynamic Phase (PD) (C)</p> Signup and view all the answers

Modifies drug structures to improve binding affinity and reduce side effects.

<p>Receptor Design (RD) (A)</p> Signup and view all the answers

Basic molecular formula representation.

<p>1D (A)</p> Signup and view all the answers

Structural diagram showing connectivity of atoms.

<p>2D (B)</p> Signup and view all the answers

Visualized structure incorporating spatial arrangements.

<p>3D (C)</p> Signup and view all the answers

Includes dynamic changes over time, such as conformational shifts in biological environments.

<p>4D (D)</p> Signup and view all the answers

Represents the volume occupied by the molecule

<p>Van der Waals Surface (A)</p> Signup and view all the answers

Shows areas of the molecule exposed to solvent.

<p>Solvent-Accessible Surface (B)</p> Signup and view all the answers

Indicate charge distribution influencing interactions with receptors.

<p>Electrostatic Potential Maps (A)</p> Signup and view all the answers

Drug fits exactly into receptor binding site

<p>Lock &amp; Key Model (A)</p> Signup and view all the answers

Receptor undergoes conformational change to accommodate the drug.

<p>Induced Fit Model (A)</p> Signup and view all the answers

Defines the essential features for molecular recognition by a biological target.

<p>Pharmacophore (A)</p> Signup and view all the answers

Quantitative Structure-Activity Relationship

<p>QSAR</p> Signup and view all the answers

Uses computational models to predict biological activity based on chemical structure.

<p>QSAR (A)</p> Signup and view all the answers

Determines how well a drug dissolves in fats, impacting cell membrane permeability.

<p>Lipophilicity (A)</p> Signup and view all the answers

Measures the ratio of drug solubility in octanol (lipid) versus water, predicting bioavailability.

<p>Partition Coefficient (logP) (A)</p> Signup and view all the answers

Trains models using known input-output pairs to optimize predictions.

<p>Supervised Learning (Delta Rule) (A)</p> Signup and view all the answers

Finds patterns in unlabeled data for classification tasks.

<p>Unsupervised Learning (Hebb’s Rule) (A)</p> Signup and view all the answers

Real-time ECG monitoring, remote consultations, and digital transmission of cardiac data.

<p>Telemedicine (A)</p> Signup and view all the answers

Categorical data (e.g., blood type, gender)

<p>Qualitative data type (A)</p> Signup and view all the answers

Numerical data (e.g., blood pressure, glucose levels).

<p>Quantitative data type (A)</p> Signup and view all the answers

Labels without inherent order (e.g., blood groups A, B, O): measurement scale

<p>Nominal (A)</p> Signup and view all the answers

Ranked categories (e.g., pain severity scale: mild, moderate, severe) : measurement scale

<p>Ordinal (B)</p> Signup and view all the answers

Numeric data with equal intervals but no true zero (e.g., temperature in Celsius) : measurement scale

<p>Interval (A)</p> Signup and view all the answers

Numeric data with a true zero point (e.g., weight, height) : measurement scale

<p>Ratio (A)</p> Signup and view all the answers

Statistical Errors

<p>Type I Error = False positive (rejecting a true null hypothesis) Type II Error = False negative (failing to reject a false null hypothesis) Accuracy = How close measurements are to the actual value Precision = How consistently repeated measurements produce similar results</p> Signup and view all the answers

Descriptive Statistics (Central Tendency)

<p>= Mean = Average Value Median = Middle value, when data is ordered Mode = Most frequently occurring value</p> Signup and view all the answers

Descriptive Statistics (Dispersion)

<p>Varience = Measures data spread Standard Deviation = Square root of variance, indicating average deviation from the mean Range = Difference between highest and lowest values Confidence Intervals = Range within which the true mean is expected to lie with a given probability</p> Signup and view all the answers

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