filmov
tv
Introduction to nucleic acid and nucleotide | types of nucleotides |
Показать описание
The two types of nucleic acids, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA), enable living organisms to reproduce their complex components from one generation to the next. Unique among molecules, DNA provides
directions for its own replication. DNA also directs RNA synthesis and, through RNA, controls protein synthesis; this entire process is called gene expression.
Nucleic acids are macromolecules that exist as polymers called polynucleotides. As indicated by the name, each polynucleotide consists of monomers called nucleotides. A nucleotide, in general, is composed of three
parts: a five-carbon sugar (a pentose), a nitrogen-containing (nitrogenous) base, and one or more phosphate groups. In a polynucleotide, each monomer has only one phosphate group. The portion of a nucleotide without
any phosphate groups is called a nucleoside.
There are two families of nitrogenous bases: pyrimidines and purines. A
pyrimidine has one six-membered ring of carbon and nitrogen atoms. The members of the pyrimidine family are cytosine (C), thymine (T), and uracil (U). Purines are larger, with a six-membered ring fused to a five-membered ring.
The purines are adenine (A) and guanine (G). In DNA the sugar is deoxyribose; in RNA it is ribose. The only difference between these two sugars is that deoxyribose lacks an oxygen atom on the second carbon in the ring; hence the name deoxyribose.
#NucleotidComposition
directions for its own replication. DNA also directs RNA synthesis and, through RNA, controls protein synthesis; this entire process is called gene expression.
Nucleic acids are macromolecules that exist as polymers called polynucleotides. As indicated by the name, each polynucleotide consists of monomers called nucleotides. A nucleotide, in general, is composed of three
parts: a five-carbon sugar (a pentose), a nitrogen-containing (nitrogenous) base, and one or more phosphate groups. In a polynucleotide, each monomer has only one phosphate group. The portion of a nucleotide without
any phosphate groups is called a nucleoside.
There are two families of nitrogenous bases: pyrimidines and purines. A
pyrimidine has one six-membered ring of carbon and nitrogen atoms. The members of the pyrimidine family are cytosine (C), thymine (T), and uracil (U). Purines are larger, with a six-membered ring fused to a five-membered ring.
The purines are adenine (A) and guanine (G). In DNA the sugar is deoxyribose; in RNA it is ribose. The only difference between these two sugars is that deoxyribose lacks an oxygen atom on the second carbon in the ring; hence the name deoxyribose.
#NucleotidComposition
0:11:16
Nucleic acids - DNA and RNA structure
0:06:31
DNA vs RNA (Updated)
0:20:32
Introduction to Nucleic Acids, Nucleosides and Nucleotides | Biochemistry Basics
0:05:55
Introduction to nucleic acids and nucleotides | High school biology | Khan Academy
0:02:32
What are Nucleic Acids? Nucleic Acid Structure & Function
0:09:58
Introduction to nucleic acid and nucleotide | types of nucleotides |
0:33:25
Nucleic Acids - RNA and DNA Structure - Biochemistry
0:07:05
Nucleic Acids: DNA and RNA
0:18:50
DNA replication- part 4 I Eukaryotic DNA replication
0:08:07
Nucleic Acids 1: Introduction to Nucleic Acids and the Structure of Nucleotides
0:08:01
Introduction to Nucleic Acids
0:46:23
Cell Biology | DNA Structure & Organization 🧬
0:03:19
Nucleic Acids Introduction
0:12:26
Introduction to nucleic acids
0:02:04
Introducing cell-free nucleic acids
0:12:59
DNA Structure and Replication: Crash Course Biology #10
0:12:15
An Introduction to Nucleic Acids
0:04:34
Topic 10.1 - Intro to nucleic acids and nucleotides
0:08:00
Nucleic Acids
0:05:29
Nucleic Acid | Definition and Introduction | Complete concept
0:03:06
Nucleic Acids
0:07:29
Nucleic Acid Composition | DNA | RNA | Class 11 & 12 Biology
0:28:29
Introduction to Nucleic acids (BIOC)
0:04:34
What is a nucleotide?
Комментарии