(a.) Having the sexes in two separate individuals; -- applied to plants in which the female flowers occur on one individual and the male flowers on another of the same species, and to animals in which the ovum is produced by one individual and the sperm cell by another; -- opposed to monoecious.
Example Sentences:
(1) The results apply to a dioecious population if the migration pattern and mutation rate are sex independent.
(2) The population is assumed to be infinite dioecious with nonoverlapping discrete generations and random mating.
(3) It is argued that the genome of R. acetosa is undergoing rapid reorganisation on this small island which may be associated with an enforced shift towards inbreeding in this dioecious species.
(4) The above results apply to autosomal loci in monoecious (with or without selfing) and dioecious populations and to X-linked loci.
(5) Seven centric shifts and three reciprocal interchanges, all newly-arisen in natural populations, have been tested for their inheritance in the dioecious flowering plant Rumex acetosa.
(6) Staurotypus does not confirm to the general model of sex chromosome evolution for diploid dioecious organisms.
(7) Thus the cost of sex in gynodioecious populations is (with a low level of selfing) as high as in a dioecious population.
(8) The technique has been successful in both dioecious and monoecious families with short chromosomes.
(9) Fluke LSU rRNA has significant sequence homology to mosquito mitochondria LSU rRNA and is more closely related to the mitochondrial rRNA of hermaphroditic than dioecious trematodes.
(10) Weak selection at a single mutiallelic locus in a dioecious population is analysed under the assumptions of panmixia and discrete non-overlapping generations.
(11) is fertilized by small biflagellate spermatozoids and both monoecious and dioecious species are found.
(12) This situation contrasts with the one described for another heterosporous haploid dioecious pteridophyte, Marsilea vestita, where nucleocytoplasmic interaction has been interpreted as the de novo creation of plastids and mitochondria following the elimination by autophagy of the organelles inherited at meiosis.
(13) Discrete, nonoverlapping generations are posited for autosomal and X-linked loci in dioecious populations, but monoecious populations are studied in both discrete and continuous time.
(14) The mean fitness is the product of the mean fertility and the mean viability; in dioecious populations, the latter is the unweighted geometric mean of the mean viabilities of the two sexes.
(15) Properties of identity relation between genes are discussed, and a derivation of recurrent equations of identity coefficients in a random mating, diploid dioecious population is presented.
(16) Chromosome analyses of 227 mature plants of the dioecious species Rumex acetosa collected on the small island of Skomer have revealed an extremely high level of unique and polymorphic variation.
(17) Study of the reproductive anatomy in 65 strobilae of the dioecious cestode Shipleya inermis Fuhrmann, 1908 (Acoleata: Dioecocestidae) showed that a common genital duct, probably arising through fusion of the vas deferens and the proximal portion of the vaginal duct, compensated functionally for the loss of a patent vagina.
(18) Using adequate definitions of mean fitnesses in general contexts of frequency-dependent selection in dioecious populations, we show that two phenotypes, when they can coexist in the population, tend to balance their fitnesses as far as is allowed by the genetic system as more alleles responsible for phenotype determination are introduced into the population.
(19) The plant is dioecious with very reduced male and female flowers.
Reproductive
Definition:
(a.) Tending, or pertaining, to reproduction; employed in reproduction.
Example Sentences:
(1) The availability and success of changes in reproductive technology should lead to a reappraisal of the indications for hysterectomy, especially in young women.
(2) The purpose of this paper is to discuss the potential for integrating surveillance techniques in reproductive epidemiology with geographic information system technology in order to identify populations at risk around hazardous waste sites.
(3) In this way they offer the doctor the chance of preventing genetic handicaps that cannot be obtained by natural reproduction, and that therefore should be used.
(4) The sensitivity , accuracy, and reproductibility of this method are described and discussed.
(5) Thus, inhibition of reproductive function of young males after EP action has been demonstrated.
(6) The La Parguera facility was established in part to contrast the social behavior of free-ranging groups with that in enclosures, as well as to compare the seasonal events linked to reproduction with those at Cayo Santiago.
(7) Thus, the carotid pulse tracing provides an accurate reproduction of the morphology of the pressure tracing recorded from the ascending aorta, and when calibrated by peripheral blood pressure measurement, it can be used to calculate LV pressure throughout ejection.
(8) Somewhat surprisingly then, in view of the mechanisms in mammals, birds do not seem to use this seasonal message in the photoperiodic control of reproduction.
(9) Such factors can mask any interactions between biologic factors of the aging female reproductive system and other social factors that might otherwise detemine fertility during the later reproductive years.
(10) The results indicate that additional feed in late gestation improves reproductive performance in sows.
(11) Here we show that the subsequent survival and reproductive success of subordinate female red deer is depressed more by rearing sons than by rearing daughters, whereas the subsequent fitness of dominant females is unaffected by the sex of their present offspring.
(12) The variations in behavior and physiology across the year were considered in terms of factors constraining the timing of the natural reproductive pattern.
(13) Opposition to legal abortion takes magical thinking and a lack of logic | Jessica Valenti Read more The only female Republican candidate for the White House has doubled down on her restrictive position over reproductive rights since a successful debate performance .
(14) 23, 163-185) for growth and reproduction of individual daphnids.
(15) This variation in risk remained when allowance was made for the incomplete nature of some of the reproductive histories.
(16) A regulatory role for GABA in the reproductive tract is postulated.
(17) We have examined the serum MT response in the male hamster to a single dose of 25 micrograms MT administered in the morning or in the afternoon--the same timing and dose used by others to produce reproductive effects.
(18) The lavage model was considered suitable for reproduction of severe respiratory distress.
(19) Circumvaginal muscle (CVM) home training based on principles of exercise physiology were tested on 48 healthy reproductive-age women.
(20) the smallest concentrations were measured, differing significantly from animals in other reproductive periods.