BIOLOGY 1A03 Lecture Notes - Lecture 3: Hemoglobin, Cell Membrane, Globin

• School: McMaster University
• Department: Biology
• Course: BIOLOGY 1A03
• Professor: Rosa Da Silva

Document Summary

All cells derived from a single fertilized egg, at one point as a zygote all embryonic stem cells were identical. Early embryonic stem cells have an almost unlimited ability to mature or differentiate into many different cell types. Adult bodies contain around 200 distinct cell types. Cells are able to communicate with each other, and begin to engage in various genetic interactions that regulates continual development and cellular differentiation. Development from a single fertilized zygote is dependent on molecular communication between cells off at specific times: depends on the signals exchanged and which genes are switched on or. Gene regulation is responsible for creating various cell types in multicellular organisms. Specific cells can be organized into groups of cells or tissue types that work together to carry out specific functions. Same genome, but gene regulation leads to altered proteomes that contribute to distinct differences in cellular functions.