Robertson's lawn.

Brit.

/ˈrɒbəts(ə)nz ˌlɔː/, U.S.

/ˈrɑbərts(ə)nz ˌlɔ/,

/ˈrɑbərts(ə)nz ˌlɑ/

Origin: From a proper name, combined with an English element. Etymons: proper name Robertson , law n.¹

Etymology: < the genitive of the name of William R. B. Robertson (see Robertsonian adj.) + law n.¹

Genetics.

An empirical law stating that the number of chromosome arms of a population or species tends to remain constant, although the number of chromosomes may vary.

ΘΚΠ

the world > life > biology > study > [noun] > genetics > law of

Robertson's law1937

Muller's ratchet1974

1937 Proc. Zool. Soc. A. 107 535 The diploid chromosome number of Marsupials is between 12 and 28; it is often 22... Probably these numbers can be restored by Robertson's law to 24.

1945 M. J. D. White Animal Cytol. & Evol. viii. 170 In certain groups ‘Robertson's law’ explains many of the more obvious changes in chromosome shape.

1956 Jrnl. Morphol. 99 265 Well-documented instances of chromosomal phylogeny conforming to Robertson's law have been reported from several groups of animals.

2002 A. Sharma & S. Sen Chromosome Bot. iv. 68/2 These two processes can increase or reduce the chromosome number without a change in the number of long arms, according to Robertson's law.

This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022).

单词	robertsons law
释义	Robertson's lawn. Brit. /ˈrɒbəts(ə)nz ˌlɔː/, U.S. /ˈrɑbərts(ə)nz ˌlɔ/, /ˈrɑbərts(ə)nz ˌlɑ/ Origin: From a proper name, combined with an English element. Etymons: proper name Robertson , law n.¹ Etymology: < the genitive of the name of William R. B. Robertson (see Robertsonian adj.) + law n.¹ Genetics. An empirical law stating that the number of chromosome arms of a population or species tends to remain constant, although the number of chromosomes may vary. ΘΚΠ the world > life > biology > study > [noun] > genetics > law of Robertson's law1937 Muller's ratchet1974 1937 Proc. Zool. Soc. A. 107 535 The diploid chromosome number of Marsupials is between 12 and 28; it is often 22... Probably these numbers can be restored by Robertson's law to 24. 1945 M. J. D. White Animal Cytol. & Evol. viii. 170 In certain groups ‘Robertson's law’ explains many of the more obvious changes in chromosome shape. 1956 Jrnl. Morphol. 99 265 Well-documented instances of chromosomal phylogeny conforming to Robertson's law have been reported from several groups of animals. 2002 A. Sharma & S. Sen Chromosome Bot. iv. 68/2 These two processes can increase or reduce the chromosome number without a change in the number of long arms, according to Robertson's law. This entry has been updated (OED Third Edition, June 2010; most recently modified version published online March 2022). < n.1937
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