Transcription Factors Eukaryotes use?transcription factors?to control gene expression A transcription factor is a protein that?controls the transcription of genes?by binding to a specific re...
Apparatus & Techniques: Producing Tissue Cultures from Cauliflower Explants Creating clones of cauliflowers is used to demonstrate totipotency through the production of?tissue culture Ca...
對于喜歡計算機的同學們來說，USACO受到斯坦福、MIT、卡梅等美國大學的高度認可，可謂強勢提升自己背景的好活動之一！ 作為一個升級類賽事，大多數參賽同學的目標肯定不止一次晉級。因此早早準備起來才是上策！ ...
Evaluating the Use of Stem Cells Use of embryonic stem cells Due to their ability to differentiate into multiple cell types, stem cells have huge potential in the therapeutic treatment of di...
Pluripotent & Unipotent Cells Pluripotent embryonic stem cells Pluripotent stem cells are embryonic stem cells that can differentiate into?any cell type found in an embryo?but are?not ab...
The Effect of Genetic Mutations Mutations occur?spontaneously?and?randomly?during DNA replication As the DNA base sequence determines the sequence of amino acids that make up a protein,?muta...
Required Practical: Investigating Factors Affecting Species Distribution Understanding how to investigate the effects of?named environmental factors?on the?distribution?of a?given species?is an imp...
Conservation & Human Need Humans use many?resources?from the Earth such as?land?(for settlements and agriculture),?water,?wood?and?fossil fuels As the human?population?increases?and coun...
Apparatus & Techniques: Investigating Growth Rate Using Turbitity Measurements The?population growth rate?of microorganisms, such as bacteria or yeast, can be investigated by growing the...
