the evolution and maintenance of sexual reproduction? (more unsolved problems in biology) Evolution of sexual reproduction describes how sexually reproducing...
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Sexual reproduction is a type of reproduction that involves a complex life cycle in which a gamete (haploid reproductive cells, such as a sperm or egg...
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Plant reproduction is the production of new offspring in plants, which can be accomplished by sexual or asexual reproduction. Sexual reproduction produces...
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copy of itself. The evolution of sexual reproduction is a major puzzle for biologists. The two-fold cost of sexual reproduction is that only 50% of organisms...
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Human reproduction is sexual reproduction that results in human fertilization to produce a human offspring. It typically involves sexual intercourse between...
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Isogamy (redirect from Sexual conjugation)
the first stage in the evolution of sexual reproduction. Isogamous reproduction evolved independently in several lineages of plants and animals to anisogamous...
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Sex (section Sexual reproduction)
trait that determines whether a sexually reproducing organism produces male or female gametes. During sexual reproduction, a male and a female gamete fuse...
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Copulation (zoology) (redirect from Evolution of copulation control in hominids)
Sachs Benjamin D. : The physiology of male sexual behavior. In Knobil Ernest, Neill Jimmy D. The physiology of reproduction, Raven Press, 2nd edition, 1994...
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Complementation (genetics) (section Genetic complementation, heterosis, and the evolution of sexual reproduction)
is the masking of deleterious recessive alleles in hybrid individuals. In general, the two fundamental aspects of sexual reproduction in eukaryotes are...
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the most common form of asexual reproduction is parthenogenesis, which is typically used as an alternative to sexual reproduction in times when reproductive...
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the fry leave the nest and the free-swimming stage begins. Evolution of sexual reproduction Guimaraes-Cruz, Rodrigo J., Rodrigo J.; Santos, José E. dos;...
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characteristics not directly involved in reproduction. The condition occurs in most dioecious species, which consist of most animals and some plants. Differences...
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Darwin's warm little pond. The evolution of sexual reproduction may be a primordial and fundamental characteristic of eukaryotes, including single cell...
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sexuality portal Body odor and subconscious human sexual attraction Erogenous zone Evolution of sexual reproduction Human height Human physical appearance Human...
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Lordosis behavior (category Sexual intercourse)
of the longissimus and transverso-spinalis muscles causes the ventral arching of the vertebral column. Sexual behaviour is optimized for reproduction...
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sexual reproduction, the fusion of male and female reproductive cells (gametes) to create a zygote. The origin and evolution of sexual reproduction remain...
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the female vagina for sexual pleasure, reproduction, or both. This is also known as vaginal intercourse or vaginal sex. Sexual penetration has been known...
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has been used to explain the significance of sexual reproduction as a means to enable continual evolution and adaptation in response to coevolution with...
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Internal fertilization (category Reproduction in animals)
Internal fertilization is the union of an egg and sperm cell during sexual reproduction inside the female body. Internal fertilization, unlike its counterpart...
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Coevolution (redirect from Co-evolution)
role in driving major evolutionary transitions such as the evolution of sexual reproduction or shifts in ploidy. More recently, it has also been demonstrated...
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Penile-vaginal intercourse (category Sexual acts)
dimensions of the human vagina". Human Reproduction. 21 (6): 1618–1622. doi:10.1093/humrep/del022. PMID 16478763. Cleveland Clinic: Sexual Health: Female...
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Eukaryote (redirect from Evolution of eukaryotes)
smaller surface area to volume ratio. The evolution of sexual reproduction may be a primordial characteristic of eukaryotes. Based on a phylogenetic analysis...
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Protist (redirect from Kingdom of misfits)
evidence of radiolarians. Evolution of sexual reproduction Marine protists Protist locomotion Protistology According to some classifications, all of Archaeplastida...
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XO sex-determination system (section Evolution)
doi:10.3390/genes11080849. PMC 7466014. PMID 32722348. Bull, James J.; Evolution of sex determining mechanisms; p. 17 ISBN 0805304002 Bachtrog, Doris; Mank...
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Simultaneous hermaphroditism (category Sexual reproduction)
ISBN 978-0-19-506394-3. Leonard J, Cordoba-Aguilar A (2010-07-19). The Evolution of Primary Sexual Characters in Animals. Oxford University Press, USA. p. 20....
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initial mammalian development. Males and females of a species that reproduce sexually have different forms of gametogenesis: spermatogenesis (male): Immature...
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Plant reproductive morphology (redirect from Sexual reproduction of plants)
the study of the physical form and structure (the morphology) of those parts of plants directly or indirectly concerned with sexual reproduction. Among all...
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Canine reproduction is the process of sexual reproduction in domestic dogs, wolves, coyotes and other canine species. As with all mammals, a dog's penis...
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herself. In normal sexual reproduction, the father has two sets of chromosomes, and crossing over takes place between the chromatids of each pair during...
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