inactive-X hypothesis

Lyon hypothesis

an explanation for DOSAGE COMPENSATION in the X-chromosomes of mammals including humans, proposed by Mary Lyon. The main features of the hypothesis are that only one X-chromosome is active in a mature mammalian cell, all other X-chromosomes present having been inactivated during embryological development. Different X-chromosomes are thought to be inactivated in different cells, which may produce a MOSAIC phenotype in heterozygous individuals. BARR BODIES are thought to indicate the presence of inactive X-chromosomes.

单词	inactive-x hypothesis
释义	inactive-X hypothesis inactive-X hypothesis or Lyon hypothesis an explanation for DOSAGE COMPENSATION in the X-chromosomes of mammals including humans, proposed by Mary Lyon. The main features of the hypothesis are that only one X-chromosome is active in a mature mammalian cell, all other X-chromosomes present having been inactivated during embryological development. Different X-chromosomes are thought to be inactivated in different cells, which may produce a MOSAIC phenotype in heterozygous individuals. BARR BODIES are thought to indicate the presence of inactive X-chromosomes.
随便看	end-systolic pressure-length relation end-systolic pressure-length relationship end systolic pressure-volume line end-systolic pressure-volume relationship end-systolic stress-strain relation end-systolic stress-volume relation end-systolic stress-volume relationship end-systolic tension-length relation end systolic volume end-systolic volume end-systolic volume index endt end table end tag end term of service end the arms race end their days end their life end their lives end thrust end tidal end-tidal end-tidal anesthetic-agent concentration end-tidal carbon dioxide end-tidal inspiratory activity