125 results found

Search Results for: genetic information

Genetic Information and Protein Synthesis

Genetic Code Genes are sequences of DNA nucleotides that carry and transmit the information specifying amino acid sequences... Read More

Genetic material

Genetic Material Definition What is genetic material? Genetic material is the hereditary substance in the cell. It carries... Read More

Genetic diversity

Genetic Diversity Definition Each species is composed of individuals with their own set of genes. A gene is the inheritance... Read More

Codon

What does codon mean? A codon, in biology, is the basic genetic unit of life that acts as the template for the amino acid... Read More

Deoxyribonucleic acid

Deoxyribonucleic Acid (DNA) Definition A nucleic acid refers to any of the group of complex compounds made up of linear... Read More

Genome

Genome Definition What is a genome? As defined in biology, a genome is a complete set of deoxyribonucleic acid (DNA) within... Read More

Genetic information

Genetic information The heritable biological information coded in the nucleotide sequences of dna or rna (certain viruses),... Read More

Genetic Control – On and Off Genes

Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More

Chromosome

Chromosomes Definition Chromosomes are the thread-like structure present in the nucleus of plant and animal cells.... Read More

Homologous chromosome

A homologous chromosome pertains to one of a pair of chromosomes with the same gene sequence, loci, chromosomal length, and... Read More

Protein Synthesis

If you have jumped straight to this page, you may wish to look at the previous tutorial about DNA, which gives background... Read More

Independent Assortment and Crossing Over

Reviewed by: Mary Anne Clark, Ph.D. The previous tutorial investigates the process of meiosis, where... Read More

Bacteria

Bacteria Definition What are bacteria? What is the definition of bacteria in biology? Bacteria are defined as organisms... Read More

Translation

Translation, in general, is the conversion of something into another form, such as a word from one language to another. But... Read More

Frameshift mutation

Define Frameshift Mutation What is a frameshift mutation? In biology, insertions or deletions of nucleotides in the coding... Read More

Law of Independent Assortment

Law of Independent Assortment Definition The Mendelian inheritance principles are derived from and named after the monk,... Read More

Ribonucleic acid

Ribonucleic Acid Definition noun (uncountable), ribonucleic acids ri·bo·nu·cle·ic ac·id, raɪboʊnjuːkliːɪk... 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

Chromosomal mutation

Every living thing is made up of DNA. Our DNA is what makes us unique and different in the world. Our DNA is made up of... Read More

Meiosis

What is Meiosis? A simple definition of meiosis would be is this: meiosis is the process of cell division that results in... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Nucleic acid

Definition noun plural: nucleic acid nu·cle·ic ac·id, nuˈkleɪ.ɪk ˈæsɪd Any of the group of complex compounds... Read More

Mutagen

Mutagen Definition What is a mutagen? A mutagen is a substance or agent that causes DNA impairment that results in the... Read More

Mitochondrial DNA

Mitochondrial DNA Definition noun plural: mitochondrial DNAs The genetic material in the mitochondrion that carries code... Read More

Gene

A gene is the fundamental, physical, and functional unit of heredity. The genes make up the sequences of DNA (genotypes).... Read More

Genetics – Lesson Outline & Worksheets

  Topics Modules Quizzes/Worksheets Description Introduction to Genetics Genetics - Definition:... Read More

Chromatin

Chromatin Definition What is chromatin in a cell? Chromatin is a complex of nucleic acids (e.g. DNA or RNA) and proteins... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More

Human Reproduction and Fertilization

For the human species to continue surviving, it is essential that mature adults are capable of producing fertile offspring... Read More

Chromosome Mutations

Reviewed by: Mary Anne Clark, Ph.D. By nature, the genetic information from both parents is expected to be seen... Read More

Selective Breeding

Reviewed by: Mary Anne Clark, PhD Thousands of years before Darwin proposed evolution by natural selection and... Read More

Transcription (biology)

In biology, transcription is the process of transcribing or making a copy of the genetic information stored in a DNA strand... Read More

The Evolutionary Development of Multicellular Organisms

The beginning of the Cambrian era saw a widespread arrival of multi-cellular organisms, particularly in the form of sponges.... Read More

Chemical Composition of the Body

In order to fully understand the mechanisms of human physiology, it is important to have an understanding of the chemical... Read More

Biological Viruses

The prime directive of all organisms is to reproduce and survive and this also applies to viruses. Apparently, viruses are... Read More

Heredity

Reviewed by: Mary Anne Clark, PhD Heredity Definition In biology, heredity refers to the passing of genetic... Read More

Bivalent

Bivalent Definition What is bivalent? In genetics, bivalent is used in describing homologous chromosomes (referred to as... Read More

Protein synthesis

Protein synthesis is the process of creating protein molecules. In biological systems, it involves amino acid synthesis,... Read More

Prokaryote

Prokaryote refers to any of the group of organisms primarily characterized by the lack of true nucleus and other... Read More

Parthenogenesis

To reproduce, by definition, means to produce new offspring. The process is referred to as reproduction, which is one of the... Read More