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Media Advisory
On April 25, 2023, NHGRI will host a symposium to commemorate two special milestones: the 20th anniversary of the Human Genome Project’s completion and the 70th anniversary of the discovery of the DNA double helix.
… For Immediate Release … On National DNA Day, the National Human Genome Research Institute (NHGRI), part of the National Institutes of Health, will host a symposium to commemorate two special …
Talking Glossary
Un codón de terminación es una secuencia de tres nucleótidos (un trinucleótido) en el DNA o el ARN mensajero (ARNm) que señaliza una parada en la síntesis proteica de la célula.
… una secuencia de tres nucleótidos (un trinucleótido) en el DNA o el ARN mensajero (ARNm) que señaliza una parada en la … proteica de la célula. … A stop codon is a sequence of three nucleotides (a trinucleotide) in DNA or messenger RNA (mRNA) that signals a halt to protein …
Fact Sheets
Polymerase chain reaction (PCR) is a technique used to "amplify" small segments of DNA.
… (PCR) is a technique used to "amplify" small segments of DNA. … Sometimes called "molecular photocopying," the … technique used to "amplify" - copy - small segments of DNA. Because significant amounts of a sample of DNA are …
Educational Resources
Ribonucleic acid (RNA) is a molecule similar to DNA. Unlike DNA, RNA is single-stranded.
… (RNA) … Ribonucleic acid (RNA) is a molecule similar to DNA. Unlike DNA, RNA is single-stranded. … Cell, Genetic … often single-stranded. An RNA molecule has a backbone made of alternating phosphate groups and the sugar ribose, rather … deoxyribose found in DNA. Attached to each sugar is one of four bases: adenine (A), uracil (U), cytosine (C) or …
Educational Resources
A bacterial artificial chromosome (BAC) is an engineered DNA molecule used to clone DNA sequences in bacterial cells (for example, E. coli).
… … A bacterial artificial chromosome (BAC) is an engineered DNA molecule used to clone DNA sequences in bacterial cells (for example, E. coli). … … are often used in connection with DNA sequencing. Segments of an organism's DNA, ranging from 100,000 to about 300,000 …
Educational Resources
Antisense is the non-coding DNA strand of a gene.
… Antisense … Antisense is the non-coding DNA strand of a gene. … Non-coding DNA, Messenger RNA, … Protein Synthesis … Antisense is the non-coding DNA strand of a gene. In a cell, antisense DNA serves as the template …
Educational Resources
A base pair consists of two complementary DNA nucleotide bases that pair together to form a “rung of the DNA ladder.”
… Base Pair … A base pair consists of two complementary DNA nucleotide bases that pair together to form a “rung of the DNA ladder.” … Genetic Code, Nucleotides, Amino Acids, …
Educational Resources
Shotgun sequencing is a laboratory technique for determining the DNA sequence of an organism's genome.
… sequencing is a laboratory technique for determining the DNA sequence of an organism's genome. … Deoxyribonucleic Acid (DNA), DNA … is a laboratory technique for determining the DNA sequence of an organism’s genome. The method involves randomly …
Educational Resources
A mutagen is a chemical or physical phenomenon, such as ionizing radiation, that promotes errors in DNA replication.
… such as ionizing radiation, that promotes errors in DNA replication. … Mutagen, DNA Mutation, DNA Replication, … Cancer … A mutagen is a chemical or physical agent capable of inducing changes in DNA called mutations. Examples of mutagens include tobacco products, radioactive substances, …
Educational Resources
Chromatin is a substance within a chromosome consisting of DNA and protein.
… … Chromatin is a substance within a chromosome consisting of DNA and protein. … Chromosome, Histones, Gene Expression, DNA … Chromatin refers to a mixture of DNA and proteins that form the chromosomes found in the …