What's the difference between heterosis and parent?

Heterosis


Definition:

  • (n.) A figure of speech by which one form of a noun, verb, or pronoun, and the like, is used for another, as in the sentence: "What is life to such as me?"

Example Sentences:

  • (1) A comparative study was performed for isoelectric and electrophoretic spectra blood serum albumin of parental breeds of chickens and their heterosis hybrids --broiler cocks.
  • (2) Heterosis and recombination effects were not significant for milk production or milk composition.
  • (3) Heterosis with multiplicative action between loci implies multiplicative accumulation of heterosis present at individual loci in part I, in addition to multiplicative (a x a)-interaction in part II.
  • (4) Effects of maternal heterosis were positive for both prenatal and postnatal survival.
  • (5) These results support the hypothesis that heterosis in cattle for traits related to growth and size is due to dominance effects of genes.
  • (6) The possible explanations for heterosis and heterozygous advantage have included the hypothesis that the metabolic versatility of heterozygotes for functional alleles of structural genes would enhance resistance to environmental insult, i.e.
  • (7) Heterosis effects in animals of all ages for reproductive traits in F1 dams producing F2 progeny differed among the three composite populations, as did heterosis retained in combined F2 and F3 dams producing F3 and F4 progeny.
  • (8) Heterosis for postweaning growth rate was 3.9% (P less than .01) and for slaughter weight 5.0% (P less than .01).
  • (9) Variables important for selection were determined by breeding value, individual and maternal heterosis, parity, size of birth litter, sex, age of dam, genetic and environmental relationships between variables, and common litter, permanent, and random environmental effects.
  • (10) The growth rate of the steers differed in the two environments; however, heterosis for slaughter weight was of the same magnitude in both environments.
  • (11) Percent direct heterosis for body weight was larger in the selected crosses relative to the control crosses through 31 days of age, but the trend was reversed by 63 days.
  • (12) Direct heterosis tended to be larger than maternal heterosis in both selected and control crosses.
  • (13) Data on 135 young bulls from a two-breed group diallel experiment involving double-muscled (DM) and normal (N) cattle were analyzed to obtain estimates of heterosis, maternal and direct effects for carcass traits.
  • (14) Differences in dimer stabilities in vivo would affect the total GPI-1 levels in heterozygotes and could account for non-additive inheritance but would be insufficient to explain heterosis for GPI-1 activity.
  • (15) The effects of maternal heterosis and maternal and grandmaternal breed effects on cumulative lifetime number and weight of calves weaned per cow entering the breeding herd were evaluated for 172 reciprocal crossbred and 156 straightbred cows of the Hereford, Angus, and Shorthorn breeds.
  • (16) Hypothesis 1: Heterosis is a consequence of a more efficient hybrid metabolic system in that it can produce more product with equal input.
  • (17) Allelic effects are assumed to be additive on the scale of enzyme activity, heterosis arising whenever a heterozygote has a mean level of activity closer to optimal than that of other genotypes in the population.-A new measure of genetic divergence between populations is proposed, which is readily interpreted genetically, and increases approximately linearly with time under centripetal selection, drift and mutation.
  • (18) Average maternal heterosis, though generally positive, was not significant for carcass traits on either an age-constant or weight-constant basis.
  • (19) Sixteen inter-related F1 hybrids were individually compared with their parents, revealing the presence of large amounts of dominance and heterosis for the various competitive parameters, all directed towards improved competitive ability.
  • (20) When additive X additive effects were ignored, total heterosis was significant for earlier day born, heavier birth weight, preweaning and postweaning gain, and heavier and fatter carcasses.

Parent


Definition:

  • (n.) One who begets, or brings forth, offspring; a father or a mother.
  • (n.) That which produces; cause; source; author; begetter; as, idleness is the parent of vice.

Example Sentences:

  • (1) Parents of subjects at the experimental school were visited at home by a community health worker who provided individualized information on dental services and preventive strategies.
  • (2) Although Jeggo's Chinese hamster ovary cells were more responsive to mAMSA, novo still abrogated mAMSA toxicity in the mutant cells as well as in the parental Chinese hamster ovary cells 2,4-Dinitrophenol acted similarly to novo with respect to mAMSA killing, but neither compound reduced the ATP content of V79 cells.
  • (3) Our parents had no religious beliefs and there will be no funeral."
  • (4) Loratadine has one main metabolite, descarbethoxyloratadine, which is four times more active than the parent drug.
  • (5) The antiproliferative activity of IFN was studied using the parental L cell line, a tk- derivative, and a tk- (tk+) subline into which the tk gene of herpes simplex virus was introduced.
  • (6) The remainder of the radioactivity appeared chromatographically just prior to the bisantrene peak, indicating that compounds more polar than the parent were present as transformation products.
  • (7) 4) Parents imagined that fruit drinks, carbonated beverages and beverages with lactic acid promoted tooth decay.
  • (8) Parents believed they should try to normalize their child's experiences, that interactions with health care professionals required negotiation and assertiveness, and that they needed some support person(s) outside of the family.
  • (9) Then, the informed permission of parents should be obtained.
  • (10) Some parents are blessed with a soul that lights up every time their little precious brings them a carefully crafted portrait or home-made greetings card.
  • (11) Swedes tend to see generous shared parental leave as good for the economy, since it prevents the nation's investment in women's education and expertise from going to waste.
  • (12) It said 70 of the killed militants were from Isis, while the other 50 it described as being aligned with the Nusra Front, the parent organisation of the Khorasan cell and al-Qaida’s preferred affiliate in Syria.
  • (13) F pili could be seen on cells of the latter strain but not on those of the parental strain or the strain bearing pColVF54 luminal diameter r. Pili other than F pili were not seen on cells of the strains bearing pF54 in either form.
  • (14) There is a gradual loosening of the adolescent's emotional dependence on her parents and a transfer of dependency ties to peers.
  • (15) Pharmacokinetics of the parent drug followed a two-compartment model.
  • (16) At the weekend the couple’s daughter, Holly Graham, 29, expressed frustration at the lack of information coming from the Foreign Office and the tour operator that her parents travelled with.
  • (17) Bile flow was stimulated significantly by VPA and MCCA, but not by CCA; changes in bile flow correlated with the biliary excretion rate of base-labile conjugates rather than with excretion of the parent compounds themselves.
  • (18) In both cases a small marker chromosome was observed which proved de novo in origin, since parental chromosomes were normal.
  • (19) It is suggested that children may learn enough to satisfy their parents' expectations by this age or grade.
  • (20) The majority of the recombinants had received all the other gene segments from the sensitive parent strain.

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