Project Research Associate Interview Questions and Answers

Dry swab method is a non-invasive way of collecting samples. Feluda test is a rapid COVID-19 test based on CRISPR-Cas9 technology.

• Dry swab method involves using a sterile swab to collect samples from the nose or throat without any liquid medium.

• Feluda test uses CRISPR-Cas9 technology to detect specific genetic sequences of the SARS-CoV-2 virus in the collected sample.

• The test provides results within an hour and has shown high accuracy in detecting COVID-19 infections.

• The Felu...read more

Developed a machine learning model for predicting stock prices using technical indicators

• Used Python and various libraries like Pandas, NumPy, and Scikit-learn

• Preprocessed the data by removing missing values and outliers

• Extracted technical indicators like Moving Average, Relative Strength Index, and Bollinger Bands

• Trained and tested the model using various algorithms like Linear Regression, Random Forest, and Support Vector Regression

• Achieved an accuracy of 80% on the test se...read more

PCR is a technique to amplify DNA. Hot start method is a modification to prevent non-specific amplification.

• PCR involves denaturation, annealing, and extension steps

• Hot start method involves adding Taq polymerase after initial denaturation to prevent non-specific amplification

• Hot start can be achieved by using modified Taq polymerase or by adding inhibitors like antibodies or wax beads

• Hot start PCR is useful for amplifying low copy number or complex templates

• Hot start PCR can...read more

Positive dominant mutation in Lac Operon enhances the expression of genes involved in lactose metabolism.

• Positive dominant mutation increases the activity of the Lac Operon

• This mutation leads to increased expression of genes involved in lactose metabolism

• Examples of positive dominant mutations include LacI+ and CRP+