female

Zygote

...amete , cell produced by the uniting of male and female sex cells Source: Noland, George B. 1983. Genera...d cell s-usually (but not always) an ovum from a female and a sperm cell from a male-merge into a single diploid cell called the zygote (or zygocyte...

Zygospore

...re formed by the union of two gametes (male and female sex cells ) Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> zygospore In fungi , a structure that forms from the diploid zygote created by the fusion of haploid ...

X chromosome

... Contents 1 ... Full article >>> In female mammalian embryo s, the early random inactivation...ome . In X-linked recessive conditions, a normal female " carrier " passes on the mutated X chromosome to an affected son. X-ray crystallography. Full ar...

Virus

...romosome seen in the nuclei of somatic cells of female mammals . Full article >>> capsid The protein coat of a virus particle. carbanion A negatively charged carbon atom . carbocation (AKA) carbonium ion A positively charged carbon atom . Full article >>> In the ade...

Vagina

vagina in female mammals , a tube leading from the uterus to the...at leads from the uterus to the vestibule of the female reproductive tract. Full article >>> vagina Part of the female reproductive system ...

Vacuole

...s and toxic waste. vagina : a muscular organ in female mammals leading from the cervix to the exterior. vascular bundles : arrangements of the xylem and phloem in vascular plants . Full article >>> Closterium genus of Desmids in Kingdom Protista ; Division Chlorophyta w...

Uterus

uterus enlarged part of an oviduct ; in female mammals , an organ for containing and nourishin...62; Uterus [ L. uterus - womb]. The muscular female organ that houses and nourishes the developing embryo or fetus . For some vertebrates it is a...

Urine

...terus : a muscular organ in the pelvic cavity of female mammals ; also called the womb. V ... Full article >>> P urine A nitrogen-containing, double-ring, basic compound (cf. nitrogenous base ) that occurs in nucleic acids . The p urine s in DNA and RNA are adenine and guan...

Translocation

...rtility . Female infertility Factors relating to female infertility are: ... Full article >>> Also chromosomal translocation may become important. In this mechanism, ... Full article >>> (See Dominant gene , Fusion gene , Gene amplification , Gene expression , Gene f...

Tissue

... in a seed , formed from fusion of two haploid female and one haploid male nucleus . Related Terms: Haploid ... Full article >>> connective tissue s - any supporting tissue that lies between other tissue s and consists of cells embedded in a relatively large amount of extra-cel...

Teat

teat Of female mammals , the nipple of a breast or udder, from which the young suck milk. telson The terminal appendage of the last abdominal segment of some arthropods. Full article >>> Marsupials reproduce in essentially the same manner, tho...

Synapsis

...e pairs of homologous chromosomes (from male and female parent) previous to the maturation of germ cells , association or union ... Full article >>> Pairing of homologous sequence s results in synapsis of homologous chromosomes , but synapsis does not require homology . Facts ... F...

Style

...Full article >>> style Part of the female reproductive structure in the carpel of a þower; formed from the ovary wall. The tip of the style carries the stigma to which pollen grain s attach. Part of the pistil that separates the stigma from the ovary . Full article >...

Stomach

...takes a blood meal it takes some of these male and female forms into its stomach , where fertilization occurs. Full article >>> a hormone that is produced by the stomach wall when food contacts it and that stimulates other parts of the stomach to secrete gastric juices. Source: Nol...

Stigma

...ull article >>> stigma Part of the female reproductive structure of the carpel of a þ... the organ s of reproduction (male stamen and female stigma as well as the ovary ). Footprinting , DNA ase ... Full article >>> But ...

Sterile cell

...yophytes, consisting of the male anther idium and female archegonium; a multichambered jacket of sterile cell s in which gametes are formed. gamete (gam-eet) [Gk. wife] ... Full article >>>...

Start codon

...e DNA sequence . (See Reading frame .) Ovum . A female gamete . P Paleontology . Full article >>>...

Stamen

... the organ s of reproduction (male stamen and female stigma as well as the ovary ). Footprinting , DNA ase ... Full article >>>...

Species

...ular region or period. Fertilization : Fusion of female and male haploid gametes to form a diploid zygote from which a new individual develops. Full article >>> target pest. A pest species that a control action is intended to destroy. telio spore . Thick-walled dark spore of r...

Sperm

... in a seed , formed from fusion of two haploid female and one haploid male nucleus . Related Terms: ...al insemination -- the placement of sperm into a female reproductive tract or the mixing of male and female gametes by other than natural means. Autosome...

Somatic cells

...romosome seen in the nuclei of somatic cells of female mammals . base pair a pair of hydrogen-bonded nitrogenous base s (one purine and one pyrimidine ) that join the component strand s of the DNA double helix . Full article >>> All other cells are somatic cells . globular p...

Somatic cell

...mosome seen in the nuclei of somatic cell s of female mammals . base pair a pair of hydrogen-bonded nitrogenous base s (one purine and one pyrimidine ) that join the component strand s of the DNA double helix . Full article >>> All other cells are somatic cell s . globular ...

Somatic

...mosome seen in the nuclei of somatic cells of female mammals . base pair a pair of hydrogen-bonded ...somatic mammalian cells . Normally only seen in female cells and not in male cells . It is the result of the process called dosage compensation. Base ...

Similarity

...le gametophyte generation carrying both male and female reproductive organ s. Full article >>> This level of similarity is something that we use to infer that the genes are homologous, that is they have a common ancestry. Those genes came from the same origin al gene some time over e...

Sexual

...roduction . Related Terms: Gamete Mature male or female reproductive cell ( sperm or ovum ) with a ha...le gamete cell go over into and unite with the female cell (con = with together; juga = a yoke; -tion = process of action of) ... Full article >...

Sexual reproduction

...roduction . Related Terms: Gamete Mature male or female reproductive cell ( sperm or ovum ) with a ha...le gamete cell go over into and unite with the female cell (con = with together; juga = a yoke; -tion = process of action of) ... Full article >...

Sex cells

...gametes . In the male it is the sperm and in the female it is the egg . Full article >>> ...is - origin , descent]. The formation of male and female sex cells or gametes ( sperm atozoa and ova, respectively) from germ cells . Full article >...

Semen

... animals , including slugs, for fertilization of female ova. Full article >>> Semen and trans mission of disease Semen is in itself harmless on the skin or if swallowed. However, semen can be the vehicle for many sexual ly trans mitted diseases, including HIV, the virus that caus...

Self-pollination

...on . Pollen of one plant is trans ferred to the female part of the same plant or another plant with the same genetic makeup. Selectable marker . Full article >>>...

Self-incompatibility

...e plant s, the male organ s cannot fertilize the female parts of the same plant . [edit] Flower morphology ... Full article >>>...

Segregation

...;>> In other words cold water makes baby female fish form, it doesn't kill male baby fish. The same embryo could be male or female depending on the temperature it is raised at (i.e. Mendel ian segregation does not influence the ...

Selection

...ndividual that sequentially produces male and then female gametes or vice versa Sessile. Immobile because of an attachment to a substratum ... Full article >>> selection -- Process which favors one feature of organ isms in a population over another feature found in the population . F...

Seed plant

...article >>> seed plant s retain the female gametophyte on the sporophyte Spore s/Pollen ...scale complex The spirally arranged scale s on a female strobilus in gymnosperms . Full article >>> seed plant any plant that bears see...

Seed

.... Full article >>> endosperm : the female tissue that encloses the seed within the angi... in a seed , formed from fusion of two haploid female and one haploid male nucleus . A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... Full arti...

Salivary glands

...sby ... Full article >>> Infected female Anopheles mosquitoes carry Plasmodium sporozoites in their salivary glands . Full article >>> Polytene chromosomes are found in salivary glands of Diptera such as Drosophila . Their 2 mm length is much longer than metaphase ...

Retina

...>> The Retina of a heterozygous (Xx) female will have some cells with the "X" inactivated and other cells with the "x" inactivated. Full article >>> The retina , the "film" at the back of the eye that receives and processes visual images, can deteriorate when it does not ge...

Reproduction

... grain s, which attach to a pistil , in which the female gametes ( ovules ) are located. Full article &#...Reproduction Drosophila melanogaster egg "The female fruit fly lays batches of between 15 and 20 white eggs each day. Full article >>> re...

Reciprocal cross

...#62;>> Reciprocal cross Using male and female gametes for two different trait s, alternating ...s es (i.e. cross a male from population A with a female from population B and a male from population B with a female from population A). Full article...

Receptacle

...n set in, ... Full article >>> The female reproductive system likewise contains two main division s: the vagina and uterus , which act as the receptacle for the male's sperm , and the ovaries, which produce the female's ova. All of these parts are always internal. Full article >&...

Proglottid

...e and, as they mature, each develops both male and female sex organ s. Full article >>> Behi...id segment contains a full set of both male and female sex organ s and very little other structure. Full article >>>...

Progesterone

.... Full article >>> Progesterone A female sex hormone secreted by the corpus luteum that...le >>> progesterone One of the two female reproductive hormones secreted by the ovaries. Full article >>> progesterone Hor...

Primary oocyte

...s oogenesis as a primary oocyte . At birth each female carries a lifetime supply of developing oocytes ,...integrates) that is the by-product of meiosis in female animals . One functional ovum and potentially three polar bodies result from meiosis of each p...

Pollen tube

...t emerges from the pollen grain in search of the female gametophyte . Full article >>> pollen tube Structure produced by the tube nucleus in the pollen grain through which the sperm nucleus (or nuclei in angiosperm s) proceed to travel through to reach the egg . PICTURE ... Fu...

Pollination

pollination application of male pollen to the female stigma , or ovule , of a plant Source: Noland,... The trans fer of pollen from the anther to the female stigma is termed pollination . This is accomplished by a variety of methods. Entomophyly is the...

Pollen grain

... s are trans ported from the male stamen to the female stigma in a process called pollination . Full ...t emerges from the pollen grain in search of the female gametophyte . Full article >>> : The union of one male gametophyte nucleus with ...

Polar nuclei

...erm s, the two nuclei of the central cell of the female gametophyte ; they fuse with a sperm nucleus to form the triploid (3n) endosperm nucleus . pollen ... Full article >>> polar nuclei Two of the eight haploid nuclei of a megagametophyte that migrate, one from each end, to ...

Polar body

...all haploid cell , produced during oogenesis in female animals , that does not develop into a functional ovum . Full article >>> Polar body [ genetic screen ing of] Polio virus Pollination Polyadenylation Polymer Compound whose molecule consists of many repeated units linked tog...

Plant

...>> A plant species in which male and female organ s occur in the same flower of a single in...pare monoecious ). An animal with both male and female sex organ s. Related Terms: Sperm ... Full article >>> The plant s are widely sca...

Pistil

...rticle >>> pistil The flask-shaped female reproductive unit of a flower , composed of ovary , style , and stigma . Covered in Lab 8 Seed Plant Reproduction ... Full article >>> After the pistil is pollinated, the pollen grain germinates in a response to a sugary fl...

Phage

...romosome seen in the nuclei of somatic cells of female mammals . Full article >>> phage bacterio phage . phenotype The observable character istics of an organ ism. Full article >>> Bacterio phage Bacteria l virus . Lambda bacterio phage is the basis of man...

Peptides

...e DNA sequence . (See Reading frame .) Ovum . A female gamete . P Paleontology . Full article >>>...

Parthenogenesis

...duction by development of an unfertilized usually female gamete that occurs especially among lower plant s and invertebrate animals . Full article >>> parthenogenesis (par-then-oh-jen-eh-sis) [Gk. parthenon, virgin + genesis, birth] A type of reproduction in which females produce of...

Ovum

An ovum (plural ova) is a female sex cell or gamete . The word is derived from L...ve ova. Full article >>> ovum The female gamete , egg . oxidation The loss of electrons from the outer shell of an atom ; often accomp...

Ovules

...and tendons . Full article >>> The female reproductive organ is the carpel : this contains an ovary with ovules (which contain female gametes ). Full article >>> The ovary contains one or more ovules , which in turn...

Ovuliferous scales

...piral series of overlapping scale s making up the female or ovulate cone with each scale producing two o...scales , depending on the species . ovum Mature female germ cell ( egg ). Full article >>>...

Ovule

ovule structure consisting of a female gametophyte , nucellus, and integument s that de... seed plant s, a protective structure in which the female gametophyte develops, fertilization occurs, and seeds develop; contained within the ovary . Fu...

Ovulation

...om the ovary . ovum [L. ovulum - egg ]. Mature female gamete or egg cell . P ... Full article >>> clomifene citrate, which stimulates ovulation ) Surgery to restore patency of obstructed fallopian tubes Donor insemination which involves the woman being artificially inseminated w...

Oviduct

...ry cells in the lining of trachea and tubes of female oviduct . Full article >>>...

Osteocyte

...ell ) Ovary "female" plant structure in which female gametophyte s are produced and seeds develop or female animal structure in which eggs form (ova = egg ) ... Full article >>> A connectiv...

Ovary

ovary female reproductive organ in which the egg develops; ...62;>> Ovary [L. ovarium - ovary ] The female gonad: where primary oocyte s develop into mature eggs through oogenesis . It is also responsible ...