(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.
Female
Definition:
(n.) An individual of the sex which conceives and brings forth young, or (in a wider sense) which has an ovary and produces ova.
(n.) A plant which produces only that kind of reproductive organs which are capable of developing into fruit after impregnation or fertilization; a pistillate plant.
(a.) Belonging to the sex which conceives and gives birth to young, or (in a wider sense) which produces ova; not male.
(a.) Belonging to an individual of the female sex; characteristic of woman; feminine; as, female tenderness.
(a.) Having pistils and no stamens; pistillate; or, in cryptogamous plants, capable of receiving fertilization.
Example Sentences:
(1) Thirty-two patients (10 male, 22 female; age 37-82 years) undergoing maintenance haemodialysis or haemofiltration were studied by means of Holter device capable of simultaneously analysing rhythm and ST-changes in three leads.
(2) The Independent noted that one of the female protagonists yelled "You c***!"
(3) There were 12 males, 6 females, with mean age of 55.1 yrs (range 39-77 yrs).
(4) Determination of plasma luteinizing hormone (LH) levels in the peripubertal female rats revealed that plasma LH was increased transiently immediately after NPY administration.
(5) The sequential histopathologic alterations in femorotibial joints of partial meniscectomized male and female guinea pigs were evaluated at 1, 2, 3, 6, and 12 weeks post-surgery.
(6) Positivity was not correlated with current residence census tract socioeconomic indicators in black or white females.
(7) Eight-week-old virgin untreated female mice were induced to ovulate using equine chorionic gonadotropin (eCG) and human chorionic gonadotropin (hCG), and were then caged with males overnight.
(8) Groups of inbred female mice of strains CBA or C3H were infected genitally with a pathogenic human strain of Chlamydia trachomatis (N.I.1, serovar F) known to produce salpingitis and infertility in mice.
(9) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
(10) These results do not support the view that in the rat pheromones from adult males enhance puberty in females, contrary to what is known to happen in the mouse.
(11) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
(12) In common with other studies, we found that the injury occurred in competitive runners, especially females, and was likely to develop during competitive races or intensive training sessions.
(13) The serum ACE activity showed no significant difference between male and female in the control or sarcoidosis groups.
(14) Females were killed at various times after the onset of mating or artificial insemination, oviducts were fixed and sectioned serially, and spermatozoa were counted individually as to their location in the oviduct.
(15) We also demonstrated a significant difference in the Hb switching process between male and female newborns.
(16) Adult nonpregnant female rhesus monkeys fed purified diets containing 100 or 4 ppm zinc for 1 yr were mated then studied through midgestation.
(17) Female littermates injected with 0.15 M NaCl served as controls.
(18) In both cases, female cells presented more nucleoli than the respective male cells.
(19) The high concentrations of gonadotropins present in immature female rats by the end of the second week of life were suppressed by treatment with an antagonist against luteinizing hormone-releasing hormone (LHRH-A; Org.
(20) The purpose of the present study was to investigate whether the signaling behaviors of female Long-Evans rats varies over the estrous cycle.