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Results 1 - 10 of 57 for Known
  1. Can a change in the number of genes affect health and development?: MedlinePlus Genetics 
    ... be missing. These types of genetic difference are known as copy number variations (CNV). Copy number variation ...
    https://medlineplus.gov/.../copynumbervariation - Genetics
  2. What do geneticists mean by anticipation?: MedlinePlus Genetics 
    ... If the number of repeats increases, it is known as a trinucleotide repeat expansion. In some cases, ...
    https://medlineplus.gov/.../understanding/inheritance/anticipation - Genetics
  3. Is hair color determined by genetics?: MedlinePlus Genetics 
    ... is determined by many genes, although little is known about most of them. The best-studied hair- ...
    https://medlineplus.gov/genetics/understanding/traits/haircolor - Genetics
  4. Can genes be turned on and off in cells?: MedlinePlus Genetics 
    ... process of turning genes on and off is known as gene regulation. Gene regulation is an important ...
    https://medlineplus.gov/.../understanding/howgeneswork/geneonoff - Genetics
  5. How do genes direct the production of proteins?: MedlinePlus Genetics 
    ... transcription and translation. Together, transcription and translation are known as gene expression. During the process of transcription, ...
    https://medlineplus.gov/.../understanding/howgeneswork/makingprotein - Genetics
  6. Is longevity determined by genetics?: MedlinePlus Genetics 
    The duration of human life (longevity) is influenced by genetics, the environment, and lifestyle. Environmental improvements beginning in the 1900s extended ...
    https://medlineplus.gov/genetics/understanding/traits/longevity - Genetics
  7. What are whole exome sequencing and whole genome sequencing?: MedlinePlus Genetics 
    ... of large amounts of DNA. These approaches are known as next-generation sequencing (or next-gen sequencing). ... to sequence all of a person's DNA (known as the person's genome). Next-generation sequencing ...
    https://medlineplus.gov/genetics/understanding/testing/sequencing - Genetics
  8. Can changes in the number of chromosomes affect health and development?: MedlinePlus Genetics 
    ... of the normal two copies. Down syndrome (also known as trisomy 21) is an example of a ... of the normal two copies. Turner syndrome (also known as monosomy X) is a condition caused by ...
    https://medlineplus.gov/.../chromosomalconditions - Genetics
  9. Can changes in mitochondrial DNA affect health and development?: MedlinePlus Genetics 
    ... have a small amount of their own DNA (known as mitochondrial DNA or mtDNA). In some cases, ... of the body’s systems. These variants (also known as mutations) disrupt the mitochondria’s ability to ...
    https://medlineplus.gov/.../mitochondrialconditions - Genetics
  10. Can a direct-to-consumer genetic test tell me whether I will develop cancer?: MedlinePlus Genetics 
    ... it looks for 44 specific genetic variants (also known as mutations) in two genes: BRCA1 and BRCA2 . ... a condition called MUTYH-associated polyposis (MAP; also known as autosomal recessive familial adenomatous polyposis ). MAP greatly ...
    https://medlineplus.gov/.../dtcgenetictesting/dtccancer - Genetics
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