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DNA was stained with methyl green and RNA was stained with pyroxa.
Methyl green has a strong affinity for DNA, giving the DNA a green appearance, while pyrox red has a strong affinity for RNA, giving the RNA a red color. Staining cells with a mixture of methyl green and pyrox red can show the distribution of DNA and RNA in the cells at the same time.
DNA.
English: Deoxyribonucleic acid, abbreviated as DNA) is also known as deoxyribonucleic acid.
It is a molecule, double-stranded structure, composed of deoxyribonucleotides (composition: deoxyribose sugar and four nitrogenous bases.
Compose. It can form genetic instructions to guide biological development and life functions.
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The former can be stained green with methyl green solution, and the latter is pyro red to stain RNA red.
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DNA appears blue and green with base green or dibenzamine and red with green rmapyroxid.
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The DNA is methyl green and the RNA is pyroxa.
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Methyl green pyrox red mixture staining.
DNA turns green and RNA turns red.
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Methyl green than red mixed dye. It's kind of oh. Yes.
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Methyl green, green, pyroxa, red.
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Methyl green and pyrox red mixed staining.
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The basics come to read books by yourself.
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RNA with methyl orange. DNA with a green one. What green, I can't remember.
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The DNA of eukaryotic cells is mainly distributed in the nucleus.
Internally, RNA is mainly distributed in the cytoplasm.
Middle. Methyl green and pyroxain stains have different affinities for DNA and RNA, methyl green has a strong affinity for DNA, making DNA appear green, while pirored has a strong affinity for RNA, making RNA appear red.
Staining cells with a mixture of methyl green and pyrox red can show the distribution of DNA and RNA in the cells at the same time. At the same time, methyl green is replaced by diphenylamine or gentian violet as parallel.
DNA.
It is an organic compound with a complex molecular structure. It is present in the nucleus as a component of chromosomes. Its function is to store genetic information. The DNA molecule is huge and is made up of nucleotides.
Compose. Nitrogenous bases of nucleotides.
adenine, guanine, cytosine and thymine; Pentose sugar is deoxyribose.
Watson in the United States in 1953.
James Dewey Watson), Crick and Wilkins in the United Kingdom describe the structure of DNA: it consists of a pair of polynucleotide strands coiled around a common central axis.
The sugar-phosphate chain is on the outside of the helical structure, with the bases facing the inside. The two polynucleotide chains are linked by hydrogen bonds between the bases, forming a fairly stable combination.
Genetic instructions used in molecular coding instruct the development and functioning of all known organisms.
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Gentian violet or magenta acetate, as well as alkaline dyes or modified phenol fuchsin solutions can stain DNA.
Principles and analysis of DNA staining experiments.
1. The DNA of eukaryotic cells is mainly distributed in the nucleus, and the RNA is mainly distributed in the cytoplasm;
2. The affinity of methyl green and pyroxain stains to DNA and RNA is different, methyl green has a strong affinity for DNA, which makes DNA appear green, while pyroxared has a strong affinity for RNA, making RNA appear red and lead. Staining cells with a mixture of methyl green and pyrox red can show the distribution of DNA and Sakura RNA in the cell-carrying plexus at the same time. At the same time, methyl green is replaced by diphenylamine or gentian violet as parallel.
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Hello! Chromosomes are mainly DNA and proteins, and contain very small amounts of RNA
There are many types of RNA, some of which have a certain effect on the formation and maintenance of DNA and the conformation of egg white. Cells are transcribing and translating all the time, so there is also a certain amount of RNA in the chromosome
The education team [Hainan Baichuan Group] will answer for you.
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RNA stands for ribonucleic acid, and DNA stands for deoxyribonucleic acid. The essential difference between them can be known from the name: the ribose molecule in the RNA molecule is an ordinary ribose, while the ribose molecule in DNA has its hydroxyl group in position 2 replaced by hydrogen, and there is one less oxygen atom.
In addition to this, the bases involved in the formation of DNA are adenine (A), thymine (T), guanine (G), cytosine (C); The bases involved in the formation of RNA are adenine (A), uracil (U), guanine (G), cytosine (C), and other rare bases.
DNA mainly exists in the nucleus, prokaryotic nuclear region, chloroplast, mitochondria, and the genetic material of some viruses is also DNA, mostly in the form of double-stranded macromolecules, as the main body carrying genetic information. RNA is widely found in cells and viruses, and most of them are single-stranded small molecules.
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The difference between DNA and RNA in terms of chemical composition:
1. The composition of the five-carbon sugar is different: DNA contains deoxyribose, RNA contains ribose;
2. Different bases:
The constituent units of DNA are four deoxynucleotides, namely adenine deoxynucleotide, thymine deoxynucleotide, cytosine deoxynucleotide, guanine deoxynucleotide, and the bases are adenine , G guanine, C cytosine, and T thymine. The base of RNA There are 4 main bases of RNA, namely Aadenine , G guanine , C cytosine , Uracil .
3. Although DNA and RNA are both polymers, they have different degrees of polymerization. DNA has a higher degree of polymerization than RNA.
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The basic unit of DNA is deoxynucleotide, and the basic unit of RNA is ribonucleotide.
1 The distribution is different, that is, the DNA is mainly in the nucleus, and the RNA is mainly in the cytoplasm;
2 The number is different, DNA is made up of two deoxynucleotide strands, RNA is made up of only one ribonucleotide strand!
3 Their ribose sugar is different, the former is deoxyribose and the latter is ribose.
4DNA is a double helix structure, and RNA is a single helix structure.
5. In terms of structure, DNA is a double helix structure, that is, a double strand, while RNA is generally a single strand.
6 bases, the former is a, t, c, gThe latter are a, u, c, g
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