Find the task sequence to amplify DNA. PCR (Polymerase Chain Reaction) PCR is a method for repeatedly amplifying a specific gene sequence from a small DNA sample. PCR goes through three basic steps. DNA denaturation Heat to about 90°C to...
Flagellate Hundreds of millions of years ago, light-sensing organelles arose inside the monad. Creatures with ‘photoreceptors’ are able to distinguish day and night and can also avoid harmful ultraviolet light. Flatworm And these photoreceptors have evolved into light-sensing cells of...
Plants Respiration Animals carry out active breathing movements to obtain the energy they need for life activities. Through this breathing movement, oxygen is absorbed, and carbon dioxide is released. Like animals, plants do respiration. However, plant respiration is performed through...
Meiosis Meiosis is a type of cell division that results in four daughter cells in reproductive organs. each daughter cells have half the number of chromosomes of the parent cell, In meiosis, the DNA is duplicated and followed by two...
Cell division Multicellular organisms like humans are made up of cells of varying shapes and functions. Most cells are so small that they can see them only under a microscope because once they reach a certain size, they no longer...
Respiratory organ To maintain life, we absorb oxygen from the air. And we export carbon dioxide from the body. Human respiratory organs include the nose, organs, bronchi and lungs. Each bronchus in the lung continues to diverge and taper. The...
Iris muscles In the iris, the ‘Iris sphincter muscle’ constricts the pupil, and the ‘Iris dilator muscle’ enlarges the pupil. Both muscles work in reverse, controlling the size of the pupil. Ciliary body connected to the lens The lens of...
This simulation assumes that the loading dye is 50bp and the marker is 50bp. (‘bp’ is a unit showing the number of base pairs of DNA.) Electrophoresis Electrophoresis is a chemical phenomenon in which an electric charge in a solution...
The sensing part is slightly different depending on the frequency of sound. Move the slide bar to check. Cochlear Inside our ears, there is a sensory organ that senses sound. The overall shape resembles a snail called ‘cochlear.’ The cochlea...
How to use the Heart Pulse Detector Place your finger on the camera and make the entire camera screen red. This application uses the phenomenon that the color of the finger periodically changes according to the blood flow. Please press...
Chromosome If you look at the onion root under a microscope, you can see cells of different shapes and sizes, such as cells with an apparent nucleus, cells that appear to be split into two cells, and cells that have...
Find out how Mendel gets a Pure Breed. Press the button to ban a specific trait.
