What's the difference between ancestor and predecessor?

Ancestor


Definition:

  • (n.) One from whom a person is descended, whether on the father's or mother's side, at any distance of time; a progenitor; a fore father.
  • (n.) An earlier type; a progenitor; as, this fossil animal is regarded as the ancestor of the horse.
  • (n.) One from whom an estate has descended; -- the correlative of heir.

Example Sentences:

  • (1) The high frequency of increased PCV number in San, S.A. Negroes and American Negroes is in keeping with the view that the Khoisan peoples (here represented by the San), the Southern African Negroes and the African ancestors of American Blacks sprang from a common proto-negriform stock.
  • (2) The 500-bp element arose by duplication of one half of a 180-bp ancestor and insertion of a foreign segment between the two duplicated parts followed by amplification.
  • (3) The five offspring are ancestors of all known carriers.
  • (4) They are related as fourth cousins once-removed and fifth cousins in multiple ways through the six nearest common ancestors of all four parents.
  • (5) An analysis of 54 protein sequences from humans and rodents (mice or rats), with the chicken as an outgroup, indicates that, from the common ancestor of primates and rodents, 35 of the proteins have evolved faster in the lineage to mouse or rat (rodent lineage) whereas only 12 proteins have evolved faster in the lineage to humans (human lineage).
  • (6) Writing in the journal Nature , the researchers describe how our ancestors lost another piece of DNA that gives rise to both facial whiskers and sensitive spines on the tip of the penis, both of which are found in chimpanzees and other non-human primates.
  • (7) With the use of the chimpanzee and human sequences to calibrate the rate of mtDNA evolution, the age of the common human mtDNA ancestor is placed between 166,000 and 249,000 years.
  • (8) The functional and phyletic significance of this material reveals a complex pattern of behavioral and phyletic diversity among large-bodied catarrhines in Europe and suggests that this diversity evolved in situ from circum-Mediterranean middle Miocene ancestors.
  • (9) Regressions of descendant net revenue on ancestor net revenue were predominantly negative but generally were not significant.
  • (10) This finding also suggests that the Hex, Mut, and PMS systems evolved from a common ancestor and that functionally similar mismatch repair systems could be widespread among procaryotic as well as eucaryotic organisms.
  • (11) -In several cases, second or third generation descendents of 3T3 cells were observed to repeat track patterns of their ancestor cell.
  • (12) Within the family, EIAV, HTLV-III, and visna appear to be equally divergent from a common evolutionary ancestor.
  • (13) We deduce that in ubiquitin genes, concerted evolution involves both unequal crossover and gene conversion, and that the average time since two repeated units within the polyubiquitin locus most recently shared a common ancestor is approximately 38 million years (Myr) in mammals, but perhaps only 11 Myr in Drosophila.
  • (14) During this evolution the interior of the core blocks evolved as a homogeneous repetitive structure, while ancestor repeat units remained as sequence relicts in the terminal parts.
  • (15) The divergence of a common ancestor protein into PF4 and gamma IP-10 may have accompanied the development of sophisticated immune and coagulation systems in vertebrates.
  • (16) Analysis of different Mus subspecies indicates that TLev1 integrated into a common ancestor of the species Mus musculus.
  • (17) In order to assess the possibility that such proteins may have arisen through processes of divergent evolution from a common ancestor, a graphical presentation is given which correlates the pattern of allowed single base substitutions defined by the genetic code with the associated changes in the structural properties of the encoded amino acids.
  • (18) In an attempt to reconstruct the universal ancestor of all present-day tubulin genes the intron positions in 38 different alpha- and beta-tubulin genes from plants, animals, fungi and protozoa were compared.
  • (19) This raises the possibility of two lines of descent from a common ancestor.
  • (20) Phylogenetic analysis indicates that these four main virus groups might have diverged from a common ancestor at about the same time, long before the spread of AIDS in humans.

Predecessor


Definition:

  • (n.) One who precedes; one who has preceded another in any state, position, office, etc.; one whom another follows or comes after, in any office or position.

Example Sentences:

  • (1) It became fully operational in 1975, replacing its predecessor the rubber bullet.
  • (2) Gerhard Schröder , Merkel’s immediate predecessor, had pushed through parliament a radical reform agenda to get the country’s spluttering economy back on track.
  • (3) Her predecessor, Bingu wa Mutharika, had fallen out with international donors, but Banda managed to rebuild relationships.
  • (4) The problem is that too many people in this place just get advised by people who are just like them, so there’s groupthink, and they have no sense of what it’s like out there.” Is he talking about his predecessor?
  • (5) He looks set to become a stronger leader than his cautious predecessor, Hu Jintao, but he is no radical reformer, experts say.
  • (6) 9.59am GMT Summary We’ll leave you with a summary of what transpired here throughout the day: • Julia Gillard announced a contest for her position as prime minister following calls by Simon Crean, a senior minister in her government, for her to be replaced by her predecessor, Kevin Rudd • Shortly before the ballot was to take place Kevin Rudd announced he would not stand for the Labor Party leadership , re-iterating his promise to the Australian people that he would not challenge Julia Gillard • When it came time for the ballot, Gillard was the only person who stood for the leadership and she and her deputy Wayne Swan were elected unopposed .
  • (7) Banda, 64, began her term as a darling of the west, inheriting the presidency after the unexpected death of her predecessor, Bingu wa Mutharika, in 2012.
  • (8) Sources have confirmed that there are significant tensions within the party over the Unite trade union’s active support for Corbyn, following personalised attacks by its general secretary Len McCluskey on Jim Murphy, Dugdale’s predecessor as Scottish leader.
  • (9) But we won’t take risks with him.” In March 2013 Roberto Mancini, Pellegrini’s predecessor at City, criticised Wilmots for fielding Kompany against Macedonia after a 60-day absence due to a calf injury.
  • (10) But it is the presence of Webb on the list that is potentially most troubling for Blatter, who has been at Fifa for 40 years since moving from watchmaker Longines to become the protege of his now disgraced predecessor João Havelange.
  • (11) May is thought to have been keen to examine more closely the role of Chinese companies in the project amid concerns about the impact on national security and despite her predecessor David Cameron’s strong support for Hinkley .
  • (12) The room never existed in the Palais Garnier, but belongs to its predecessor the Opera Choiseul which had burned to the ground some years earlier.
  • (13) There’s no doubt that Battlefield: Hardline will be much more approachable for those who haven’t bought into its predecessors.
  • (14) While his more eminent predecessors, Gerald Durrell and John Aspinall, established that displaying wild creatures may occasionally be compatible with respect for them, zoos around the world have also sanitised – with extravagant claims about conservation, breeding programmes and species reintroduction – the essentially unchanged business of showing caged animals for cash.
  • (15) Rahm may still win but it’s going to be much more of a free-for-all at that point.” Larry Bennett, a political scientist at DePaul University in Chicago, said many of Chicago’s problems, such as systemic population loss and crime, went back decades and were never solved by his predecessor, Richard M Daley, who was mayor for six terms.
  • (16) In general, several modifications can result in a particular series of composite molecules that possess a biologic potency greater than each of its predecessors; this correlation of structure with activity was more consistent in the [D-Ala6]-series than in the [D-Trp6]-series.
  • (17) But Shukrallah says groups like Dostour are weak not through laziness but because they were not allowed to develop under Mubarak and his predecessors.
  • (18) Obama was still in a nappy during the 1962 Cuban missile crisis, when his predecessor John F Kennedy faced down the Soviet Union’s efforts to site atomic weapons on the island that is just a few dozen miles from Florida.
  • (19) The conciliatory language marked a radical change from the presidency of his predecessor, Mahmoud Ahmadinejad, and a break from tradition dating to the 1979 revolution of referring to the US as the "Great Satan".
  • (20) Labeled protein predecessors were selected as indicators of retinal-cell element viability.