PerkinElmer Molecular Biologist Interview Questions and Answers

AAS principle refers to the three key elements of authentication, authorization, and accounting in information security.

• Authentication: verifying the identity of a user or system

• Authorization: granting access to specific resources based on the user's identity and permissions

• Accounting: tracking and logging user activity for auditing and compliance purposes

• Example: A user logging into a system with a username and passwo...read more

Forced degradation study is a process used to determine the stability of a drug substance or product under various stress conditions.

• Forced degradation studies involve subjecting the drug to conditions such as heat, light, humidity, and acid/base hydrolysis to simulate potential degradation pathways.

• The purpose of these studies is to identify degradation products, determine degradation pathways, and establish the stabi...read more

Validation parameters are criteria used to ensure data input meets specified requirements.

• Validation parameters can include data type, length, format, range, and presence.

• For example, a validation parameter for a phone number field may require 10 digits and no special characters.

• Validation parameters help prevent errors and ensure data integrity.

• They are commonly used in form fields and database entries.

Validations in executive roles can face challenges due to lack of data accuracy, timeliness, and stakeholder alignment.

• Data accuracy issues can lead to incorrect decisions being made.

• Timeliness of data can impact the speed at which decisions can be made.

• Lack of stakeholder alignment can result in conflicting priorities and goals.

• Inconsistent validation processes across departments can lead to discrepancies in data inte

A validation plan outlines the process for ensuring that a product or system meets specified requirements and standards.

• Defines the objectives and scope of validation activities

• Identifies the resources, responsibilities, and timelines for validation

• Specifies the methods and procedures for testing and evaluating the product or system

• Includes criteria for acceptance and rejection of validation results

Calibration of HPLC is a process of adjusting the settings of the High Performance Liquid Chromatography system to ensure accurate and reliable results.

• Calibration involves checking and adjusting the flow rate, detector sensitivity, and column efficiency.

• Regular calibration helps maintain the accuracy and precision of the HPLC system.

• Calibration standards are used to verify the performance of the system.

• Documentation o...read more

To start method development, I would first review the literature, define the objectives, gather necessary materials and equipment, and plan the experimental design.

• Review the existing literature to understand the current knowledge and methods used in the field.

• Define clear objectives and research questions to guide the method development process.

• Gather all the necessary materials, reagents, and equipment required for t...read more

Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.

• Data integrity ensures that data remains unchanged and reliable over time.

• It involves maintaining the accuracy and consistency of data during storage, processing, and transmission.

• Data integrity can be achieved through various methods such as checksums, encryption, and error detection and correction.

• Examples of data int...read more

APQR conclusion is the final assessment and summary of the Annual Product Quality Review.

• APQR conclusion is a comprehensive evaluation of the quality of a product over the course of a year.

• It includes analysis of data, trends, deviations, and any corrective actions taken.

• The conclusion may recommend changes to processes, formulations, or quality control measures.

• Examples of APQR conclusions could be recommendations for...read more

OOS flow refers to the out of stock flow in retail operations.

• OOS flow occurs when a product is not available for purchase due to being out of stock.

• It is important for retailers to manage OOS flow effectively to avoid losing sales and customer dissatisfaction.

• Strategies to address OOS flow include improving inventory management, implementing automated restocking systems, and setting up alerts for low stock levels.

Line clearance is the process of ensuring that a production line is free from any previous product or material before starting a new production run.

• Ensure all equipment is clean and sanitized before starting a new production run

• Verify that all materials and ingredients are correct and properly labeled

• Check that all previous product residue is removed from the production line

• Confirm that all necessary quality checks hav

Stability conditions refer to the factors that contribute to the overall stability of a system or organization.

• Stability conditions can include financial stability, political stability, and social stability.

• In a business context, stability conditions may involve having a strong leadership team, a solid customer base, and a diversified product line.

• For a government, stability conditions could include a stable economy, e...read more

Data integrity refers to the accuracy, consistency, and reliability of data throughout its lifecycle.

• Ensures data is accurate and reliable

• Prevents unauthorized access or changes

• Maintained through data validation and verification processes