Assignment week 3

In this practical session, you will work with the public GEO RNA-seq dataset GSE161731, which contains blood samples from patients with COVID-19, influenza, common-cold coronavirus infection, bacterial infection, and healthy volunteers. You will learn how to download and organise gene-count and patient metadata, ensure that samples are correctly matched, annotate Ensembl gene IDs with familiar gene symbols, and clean and explore cohort information. You will also perform basic checks using the RNA-seq data to validate sample characteristics and prepare clean, reproducible data objects for downstream analysis. By the end of the session, your dataset will be ready for PCA, quality control, and differential expression analysis in the next lab.

Nama : Anjani Izza Nurlaila NIM : 2507016001 POSTEST 1