Interpret & Evaluate Data about the Uses of Recombinant DNA Technology DNA that has been altered by introducing nucleotides from another source is called?recombinant DNA?(rDNA) If the or...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.8.6 Human Transport Systems: Red Blood Cells & Plasma Red Blood Cells Red blood cells are?specialised cells?which carry?oxygen to respiring cells They ar...
關(guān)注科研的國內(nèi)家長應(yīng)該對“英才計劃”并不陌生。入選“英才計劃”，不僅能讓學(xué)生近距離接觸前沿的科學(xué)研究，還有機(jī)會晉級世界規(guī)模最大的科研賽事——ISEF國際科學(xué)與工程大獎賽！ 6月22日，“英才計劃”正式宣布了2023年...
In Vivo Method: Culture of Transformed Host Cells Polymerase chain reaction?(PCR) is a common molecular biology technique used in most applications of gene technology It is described as the?...
Polymerase Chain Reaction (PCR) Polymerase chain reaction?(PCR) is a common molecular biology technique used in most applications of gene technology, for example, DNA profiling (eg. identifi...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.8.5 Human Transport Systems: Blood Components of Blood Blood consists of?red blood cells, white blood cells, platelets?and?plasma Over half of the volume of ...
Apparatus & Techniques: Investigating the Specificity of Restriction Enzymes The?specificity?of?restriction enzymes?can be investigated using extracted DNA and?gel electrophoresis Gel el...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.8.4 Practical: Factors Affecting Transpiration Practical: Factors Affecting Transpiration We can investigate the effect of different environmental conditions...
Producing Fragments of DNA Genetic engineering is the deliberate modification of a specific characteristic (or characteristics) of an organism. The technique involves?removing a gene?(or gen...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.8.3 Water Movement in Flowering Plants Root Hair Cells Uptake of water into the root Root hair cells?are adapted for the efficient uptake of water (by osmosi...
Sequencing Methods DNA sequencing allows for the?base sequence?of an organism's genetic material to be identified and recorded Sequencing methods are continuously evolving and becoming faste...
Edexcel IGCSE Biology 復(fù)習(xí)筆記 2.8.2 Transport Systems in Flowering Plants Xylem The?roots,?stem?and?leaves?form a plant organ system for the transport of substances around the plant Plants ...
