Search Results for: helical
Deoxyribonucleic acid
Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More
Iodine test
Iodine Test Definition The iodine test is a chemical reaction-based identification test for starch. In this test, iodine... Read More
Microfilament
Definition noun plural: microfilaments mi·cro·fil·a·ments, mī'krō-fil'ă-mĕnts A thin, helical, single-stranded... Read More
Chromosome
Chromosomes Definition Chromosomes are thread-like structures present in the nucleus of plant and animal cells. Chromosomes... Read More
Chargaffs rules
Definition noun The rules proposed by an Austro-Hungarian biochemist, Erwin Chargaff, implicating that the double helical... Read More
Myocardium
Myocardium Definition What is the myocardium of the heart? It is the muscular middle layer of the heart that is... Read More
Replication
Replication, in the general sense, is to create a copy or a duplicate. Thus, in biology, replication is commonly associated... Read More
Cytoskeleton
Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More
Thin filament
Definition noun, plural: thin filaments A type of myofilament that is made up of actin, troponin, and tropomyosin molecules,... Read More
DNA Structure & DNA Replication
Previous pages in this tutorial have described the basics of a cell, the energy required by these cells and how energy is... Read More
Erwin Chargaff
Quick Info (person) A biochemist known for his proposed Chargaff's rules that led to the discovery of the double helical... Read More
Eubacteria
Eubacteria are prokaryotic microorganisms consisting of a single cell lacking a nucleus and containing DNA is a single... Read More
Nucleosome
Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More
Precursor mRNA
Definition noun plural: precursor mRNAs An immature or incompletely processed mRNA molecule in eukaryotes that needs to be... Read More
Mature mRNA
Mature mRNA Definition Mature mRNA is the completely processed mRNA molecule in the cell of eukaryotes. The mRNA is a type... Read More
Cell morphology
The basic essence for any living organism is its structural framework which includes appearance, form, and the... Read More
Biuret test
In this article we will answer the following three questions: What is a Biuret Test? What does biuret test for? What is... Read More
Hydrogen bond
Definition noun plural: hydrogen bonds A type of chemical bond that is formed when the slightly positive hydrogen atom of... Read More
Inherited traits
What are Inherited Traits? The characteristics or traits that are passed from parents to offspring are known as inherited... Read More
Polynucleotide
Definition noun plural: polynucleotides pol·y·nu·cle·o·tide, ˌpɒlɪˈno͞o′klē-ə-tīd A biopolymer comprised of... Read More
Intermediate filament
Definition noun plural: intermediate filaments A type of cytoskeleton characterized by having a diameter ranging from 8... Read More
A Protein Being Born – a live cell imaging of RNA translation
You probably already heard the concepts of translation in the central dogma of molecular biology. The dogma is an... Read More
How cell fixes DNA damage
DNA repair strategies DNA is crucial to life. It carries the fundamental blueprint for the proper functioning of a cell.... Read More
Recombination DNA repair
Recombination DNA Repair Definition Recombination DNA repair is a biological reparative process in response to DNA damage... Read More
Cross-linking
Cross-linking Definition Cross-linking, in general, means the forming of cross-links between the joining structures. In... Read More
Single-stranded DNA
What is single-stranded DNA? DNA is the material that living organisms possess that carries their genetic make-up. DNA and... Read More
Eukaryotic cells
Eukaryotic Cells Definition What is a eukaryotic cell? Eukaryotic cells refer to the cells of (or derived from) eukaryotes,... Read More
Tropomyosin
Definition noun A long protein strand composed of two fully alpha helical chains in a coiled-coil dimmer, and binds along... Read More
Nucleic acid
Nucleic Acid Definition A nucleic acid refers to any of the group of complex compounds consisting of chains of monomers of... Read More
Major groove
Major groove in a detailed analysis of dna structure, there are two types of grooves that can be seen; the major groove has... Read More
Cell matrix
Definition noun plural: cell matrices cell ma·trix, ˈmeɪtɹɪks An insoluble, dynamic gel in the cytoplasm, believed... Read More