To study the structure of DNA, you could use electron microscopes, which provide high-resolution images necessary for observing the intricate details of DNA. However, studying DNA in a living specimen poses challenges because electron microscopy requires samples to be fixed and dehydrated, which destroys the living context. Fluorescence microscopy can be used to visualize DNA in live cells by tagging specific DNA sequences with fluorescent markers, allowing researchers to observe DNA dynamics in real time without killing the specimen.
I need the same answer!!! What I could find in my book is that unlike the optical microscopes, electron microscopes use a vacuum so there can be no living specimen. So no living specimen is my final answer.
Studying the structure of DNA in a living specimen typically involves techniques like DNA extraction, PCR, and sequencing. These processes allow scientists to analyze the genetic material present in cells without altering the organism's DNA. Researchers can study the structure of DNA in living specimens to understand genetic diversity, gene expression, and genetic mutations.
wouldn't it be moving?
Electron microscopes, such as transmission electron microscopes (TEM) and scanning electron microscopes (SEM), are commonly used to study viruses due to their high magnification and resolution capabilities. These types of microscopes allow scientists to visualize the detailed structure and morphology of viruses at the nanometer scale. Light microscopes may also be used to study larger viruses.
1. electron microscope could magnify until 200,000 and have high resolution 2. they cannot be used on living organisms because it enters a vacuum so electron don't bounce off a gas molecule 3. it allow you to view molecule 4. electron microscope is a beam that hits a specimen and hitting back to draw the molecule in the fluorescent screen this is called transmission electron microscope 5. there is a scanning electron microscope that scans specimen coated by a thin layer of metal ions that bounce back forming 3-D image
Light microscopes are used to study living organism and to watch and analyze their structures. Electron microscopes use a dead specimen and are able to observe structures in great detail and with much much higher magnification. +++The electron microscope has a far higher definition and magnification than an optical microscope could achieve, but as you say you could not use it to study a living organism.
No, electron microscopes require specimens to be in a vacuum chamber, which is not compatible with living organisms that need to be in a natural environment to survive. Instead, scientists typically use light microscopes to observe living organisms.
I need the same answer!!! What I could find in my book is that unlike the optical microscopes, electron microscopes use a vacuum so there can be no living specimen. So no living specimen is my final answer.
Studying the structure of DNA in a living specimen typically involves techniques like DNA extraction, PCR, and sequencing. These processes allow scientists to analyze the genetic material present in cells without altering the organism's DNA. Researchers can study the structure of DNA in living specimens to understand genetic diversity, gene expression, and genetic mutations.
A microscope can help determine if a specimen is living by observing if it shows specific characteristics of living organisms like movement, growth, or reproduction. Additionally, the presence of organelles or cellular structures typical of living cells could indicate that the specimen is alive. On the other hand, if the specimen lacks these characteristics and appears inert or does not exhibit any cellular components, it is likely non-living.
wouldn't it be moving?
Electron microscopes, such as transmission electron microscopes (TEM) and scanning electron microscopes (SEM), are commonly used to study viruses due to their high magnification and resolution capabilities. These types of microscopes allow scientists to visualize the detailed structure and morphology of viruses at the nanometer scale. Light microscopes may also be used to study larger viruses.
Actual magnification of light microscopes could reach up 1000x magnification depending on the type of light microscope. Light microscopes could be divided into brightfield microscope and phase-contrast microscope for viewing stained specimen and unstained specimen respectively. Magnification of electron microscope on the other hand could go up to 1000000x. The actual magnification as well depends on types of electron microscope which includes transmission-electron microscope and scanning-electron microscope where both of them are used in viewing internal cell structures and cell surface structures respectively.
1. electron microscope could magnify until 200,000 and have high resolution 2. they cannot be used on living organisms because it enters a vacuum so electron don't bounce off a gas molecule 3. it allow you to view molecule 4. electron microscope is a beam that hits a specimen and hitting back to draw the molecule in the fluorescent screen this is called transmission electron microscope 5. there is a scanning electron microscope that scans specimen coated by a thin layer of metal ions that bounce back forming 3-D image
Actual magnification of light microscopes could reach up 1000x magnification depending on the type of light microscope. Light microscopes could be divided into brightfield microscope and phase-contrast microscope for viewing stained specimen and unstained specimen respectively. Magnification of electron microscope on the other hand could go up to 1000000x. The actual magnification as well depends on types of electron microscope which includes transmission-electron microscope and scanning-electron microscope where both of them are used in viewing internal cell structures and cell surface structures respectively.
a cell This could be a cell, but it could also be a specimen. The question is not sufficiently definite.
Microscopes are used to magnify. Hence, the words magnification and microscopes could be said to have a functional relationship rather than an etymological relationship.