(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.
Appraisal
Definition:
(n.) A valuation by an authorized person; an appraisement.
Example Sentences:
(1) Phenotypic relationships were examined between final score and 13 type appraisal traits and first lactation milk yield from 2935 Ayrshire, 3154 Brown Swiss, 13,110 Guernsey, 50,422 Jersey, and 924 Milking Shorthorn records.
(2) In light of these findings, the implications of the need to address appraisals and coping efforts in research and therapy with incest victims was emphasized.
(3) Reflux control, evaluated by clinical appraisal and roentgenograms in all patients and by 24-hour esophageal pH monitoring in some, has been complete in all patients throughout the study.
(4) This study examines whether the aged and the middle aged differ in their self-appraisal of health.
(5) The pump function of the heart (oxygen debt dynamics), the anaerobic threshold (complex of gas analytical indices), and the efficacy of blood flow in lesser circulation (O2 consumption plateau) were appraised.
(6) The World Humanitarian Summit in May 2016 may be the most timely opportunity to make an honest appraisal of the effectiveness of the current system to deal with the sector’s “ new normal ” of finite resources and unlimited challenges.
(7) Culture of myeloma bone marrow by this serum-free method will allow appraisal of the role of various recombinant growth factors.
(8) A total of 54 family caregivers of elderly dementia patients completed interviews and questionnaires assessing the severity of patient impairment and caregiving stressors; caregiver appraisals, coping responses, and social support and activity; and caregiver outcomes, including depression, life satisfaction, and self-rated health.
(9) The test subjects ate up their food appraising the gustatory qualities of the diet constituents.
(10) Appraisal of the results suggested an induction of microsomal enzymes which appeared to be subsiding after the cessation of direct exposure to PCBs.
(11) This study addresses the use and appraisal of services by parents at the KIDS Family Centre, Camden, London, which offers a variety of family-focused services with differing degrees of parental involvement.
(12) It is concluded after critical appraisal of all these studies that there is insufficient convincing evidence to date of an advantage of perfusion over wide local excision alone.
(13) Massive, active bleeding of the oesophageal varices in cirrhotics requires immediate, comprehensive and continuing appraisal of determining risk parameters (liver function and morphology, hyperdynamic syndrome, renal function, dynamic angiography of the splanchnic circulation).
(14) A questionnaire investigation enrolling more than 300 orthodontic patients and their parents was conducted into the subjective appraisal of treatment means and doctor-patient-interaction.
(15) By means of the inquiry method, informations were obtained regarding the appraisement of temporary working incapacity, performed by 76 doctors, of whom 45 general practitioners and 31 factory doctors.
(16) The transfer of parental immunity to infectious laryngotracheitis was appraised by measuring serum antibody levels in 150 chicks from the day of hatch up to five weeks.
(17) The recent development of H1-receptor antagonists devoid of clinical sedative effects has enabled the administration of doses of H1-antihistamines which achieve a greater degree of H1-receptor blockade within the airways, thus permitting a better appraisal of the role of histamine in this condition.
(18) A theoretical appraisal of the alternative pathway mechanism for a two-substrate enzyme shows that this mechanism is capable of giving rise to apparent substrate inhibition or substrate activation (Dalziel, 1958).
(19) Studying the natural history of coronary artery disease could provide a frame of reference for prognosis and appraisal of treatment for patients having this disease.
(20) After presenting the factors on the basis of which an exercise test may be appraised in relation to its purposes, the criteria for interpreting results in healthy and sick subjects are examined, with particular attention being paid to pneumo-patients and those with heart diseases.