What's the difference between ancestor and senior?

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.

Senior


Definition:

  • (a.) More advanced than another in age; prior in age; elder; hence, more advanced in dignity, rank, or office; superior; as, senior member; senior counsel.
  • (a.) Belonging to the final year of the regular course in American colleges, or in professional schools.
  • (n.) A person who is older than another; one more advanced in life.
  • (n.) One older in office, or whose entrance upon office was anterior to that of another; one prior in grade.
  • (n.) An aged person; an older.
  • (n.) One in the fourth or final year of his collegiate course at an American college; -- originally called senior sophister; also, one in the last year of the course at a professional schools or at a seminary.

Example Sentences:

  • (1) Brown's model, which goes far further than those from any other senior Labour figure, and the modest new income tax powers for Holyrood devised when he was prime minister, edge the party much closer to the quasi-federal plans championed by the Liberal Democrats.
  • (2) Faisal Abu Shahla, a senior official in Fatah, an organisation responsible for a good deal of repression of its own when it was in power, accuses Hamas of holding 700 political prisoners in Gaza as part of a broad campaign to suppress dissent.
  • (3) Mike Enzi of Wyoming A senior senator from Wyoming, Enzi worked for the Department of Interior and the private Black Hills Corporation before being elected to Congress.
  • (4) "Especially at a time when they are turning down voluntary requests and securing the positions of senior managers."
  • (5) A Palestinian delegation was to hold truce talks on Sunday in Cairo with senior US and Egyptian officials, but Israel has said it sees no point in sending its negotiators to the meeting, citing what it says are Hamas breaches of previous agreed truces.
  • (6) Also, it is often the case that trustees or senior leadership are in said positions because they have personal relationships with the founder.
  • (7) His senior role in the Popalzai tribe and his chairmanship since 2005 of Kandahar provincial council bolstered his reputation as an Asian version of a mafia don.
  • (8) It is understood that Cooper rejected pressure from senior Labour figures last week for both her and Liz Kendall to drop out and leave the way clear for Burnham to contest Corbyn alone.
  • (9) They are saying they have paid with their blood and they do not want to retreat," said Saad el-Hosseini, a senior Brotherhood politician.
  • (10) "We won't cancel any of our agreements," a senior Israeli diplomatic official told reporters.
  • (11) A ­senior shadow minister, who has not been named by the Telegraph in its exposé of MPs' expenses , was yesterday asked by county councillors not to campaign for next month's local elections.
  • (12) Sir James Crosby, the ITV senior independent non-executive director, explained why the board had opted to retain Grade's services for an extra year: "It was the unanimous view of ITV's independent non-executive directors that it would be in the best interests of the company and its shareholders to ask Michael to extend his time as executive chairman.
  • (13) Lisette van Vliet, a senior policy adviser to the Health and Environment Alliance, blamed pressure from the UK and German ministries and industry for delaying public protection from chronic diseases and environmental damage.
  • (14) "Android’s gain came mainly at the expense of BlackBerry, which saw its global smartphone share dip from 4 percent to 1 percent in the past year due to a weak line-up of BB10 devices," said Strategy Analytics' senior analyst Scott Bicheno.
  • (15) Sajeda Amin is a senior associate at the Population Council .
  • (16) Tim Moore, senior economist at Markit, said: "Construction is no longer the weakest link in the UK economy.
  • (17) One hundred cases of histologically proven corneal and conjunctival tumours were extracted from the records at the Princess Alexandra Hospital and from the senior author's private practice in the last ten years.
  • (18) The Dacre review panel, which included Sir Joseph Pilling, a retired senior civil servant, and the historian Prof Sir David Cannadine, said Britain now had one of the "less liberal" regimes in Europe for access to confidential government papers and that reform was needed to restore some trust between politicians and people.
  • (19) Senior sources said on Monday that the vacancies had left it in effect rudderless, and unable to introduce any significant reforms.
  • (20) Top 10 Arpad Cseh Senior investment director, UBS Alice La Trobe Weston Executive director, head of European credit research, MSIM Morgan Stanley Katie Garrett Executive director, senior engineer, Goldman Sachs Alix Ainsley, Charlotte Cherry H R director, group operations (job share), Lloyds Banking Group Matt Dawson Director for business development, The Instant Group Angela Kitching, Hannah Pearce Head of external affairs (job share), Age UK Morwen Williams Head of newsgathering operations, BBC Georgina Faulkner Head of Sky multisports, Sky Maggie Stilwell Managing partner for talent, UK & Ireland, EY Sarah Moore Partner, PwC