Navigation Links
Zygote in Biological Definition

Gamete

... involving a sperm and an egg), they form a zygote —a cell having two complete sets of chromosomes and therefore diploid . The zygote cell receives one set of chromosomes from each of ... cell divisions and cellular differentiation , a zygote develops , first into an embryo , and ...

Twin

... when a single egg is fertilized to form one zygote ( monozygotic ) but the zygote then divides into two separate embryos . The ... same womb. Depending on the stage at which the zygote divides, identical twins may share the same ...

Zygote

... A zygote ( Greek : ... into a single diploid cell called the zygote . Animal zygotes undergo mitotic cell ... (fraternal). See also Pregnancy zygote intrafallopian transfer Embryogenesis ...

Developmental biology

... the study of organisms between the one-cell stage (generally, the zygote ) and the end of the embryonic stage, which is not necessarily the ... pangenesis , phylogeny , primordium , pupa , rudiment , teratology , zygote Developmental model organisms Often used model organisms in ...

Sperm

... called semen , and is capable of fertilising an egg cell to form a zygote . A zygote can grow into a new organism, such as a human. Sperm cells contain half ...

Bacterial conjugation

... of sexual reproduction or mating ; however it is not actually sexual as it does not involve the fusing of gametes and the creation of a zygote , it is merely the exchange of genetic information. In order to perform conjugation, one of the bacteria has to carry an F- plasmid , the other one ...

Cell growth

... special daughter cells ( gametes ) which have half the normal cellular amount of DNA. A male and a female gamete can then combine to produce a zygote , a cell which again has the normal amount of chromosomes. For details see the individual articles on DNA replication , binary fission , mitosis ...

Ploidy

... over the other. This is called alternation of generations . Most diploid organisms produce haploid sex cells that can combine to form a diploid zygote , for example animals are primarily diploid but produce haploid gametes . During meiosis , germ cell precursors have their number of chromosomes ...

Embryo

... seed — it is called a seedling . Animals : The embryo of vertebrates is defined as the stages between the first division of the zygote (a fertilized ovum ) until it becomes a foetus . An embryo is called a foetus at a more advanced stage of development and up until birth or ...

Genetic recombination

... is fairly rare compared to normal recombination, but severe problems can arise if a gamete containing unbalanced recombinants becomes part of a zygote . Offspring with severe unbalances rarely live through birth. Other types of recombination Conservative site-specific recombination In ...

Ploidy

... over the other. This is called alternation of generations . Most diploid organisms produce haploid sex cells that can combine to form a diploid zygote , for example animals are primarily diploid but produce haploid gametes . During meiosis , germ cell precursors have their number of chromosomes ...

Human

... by the male through sexual intercourse , though in vitro fertilization methods are also used. The developing individual is first called a zygote ; as it grows through successive stages inside the female's uterus over a period of 38 weeks, it is called an embryo , then a fetus . At birth, ...

Infertility

... injection (ICSI) in which a single sperm is injected directly into an egg; the fertilized egg is then placed in the woman's uterus as in IVF. zygote intrafallopian transfer (ZIFT) in which eggs are removed from the woman, fertilized and then placed in the woman's fallopian tubes rather than the ...

Morula

... the 16-cell phase, the 32-cell phase, and the 64-cell phase. The morula is produced by embryonic cleavage , the rapid cell division of the zygote with virtually no growth. The morula is a solid ball; after the 64-cell phase, it develops into a hollow ball, the blastula . ...
Other Contents
(Date:8/19/2014)... infants born with neonatal abstinence syndrome (NAS) secondary ... time going through withdrawal than others, but the ... and epigenetic (when genes are turned on or ... factors, researchers at Boston University School of Medicine ... first of its kind study to identify some ...
(Date:8/19/2014)... students in college biology and other science courses ... quantitative ways, and now they have a new ... the Life Sciences," published this month by Princeton ... Institute for Mathematical and Biological Synthesis (NIMBioS), teaches ... can be used to explore and explain biological ...
(Date:8/19/2014)... been awarded a nearly $40,000 grant from the National ... of the National Park Service (NPS) and U.S. Department ... study of the energy efficiency and cost effectiveness of ... climates. , Radiant barriers are reflective thermal insulations commonly ... thereby reducing the amount of heat emitted in the ...
Breaking Biology News(10 mins):In-utero methadone, Subutex exposure could alter gene expression, cause severe Neonatal Abstience Syndrome 2New textbook introduces undergraduates to mathematics for the life sciences 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 2UTSA researcher awarded $38K+ to evaluate energy efficiency options for historic homes 3
(Date:8/20/2014)... The report “Automotive Airbag and Seat ... Analysis: by Geography - Trends and Forecasts 2014 ... automotive airbag and seatbelt market in terms of ... opportunities in the coming years as well as ... growth indicators, challenges, legislation trends, market dynamics, competitive ...
(Date:8/20/2014)... Pass, OR (PRWEB) August 20, 2014 ... parents are urged to become educated about eye health ... eye examined. One frequently overlooked eye condition that must ... the Sharon Kleyne Hour Power of Water radio show, ... young children increasing exponentially, childhood dry eye is becoming ...
(Date:8/20/2014)... August 20, 2014 B. E. Smith, ... healthcare providers, has been retained to lead a national ... Health Care System in Hermiston, Ore. The top ... E. Smith has recently placed more than 900 healthcare ... System is a progressive, not-for-profit healthcare organization serving a ...
(Date:8/20/2014)... (PRWEB) August 20, 2014 Hope For ... Give Hope® Celebration to be hosted in Washington, DC ... Navy Club. This signature event honors the courage of ... of the fallen. Proceeds from the Got Heart, Give ... national nonprofit dedicated to restoring a sense of self, ...
(Date:8/20/2014)... Inc. Magazine recently named Etransmedia ... annual Inc. 500|5000, an exclusive ranking of the ... most comprehensive look at the most important segment ... Yelp, Pandora, Timberland, Dell, Domino’s Pizza, LinkedIn, Zillow ... as members of the Inc. 500|5000. , “We ...
Breaking Medicine News(10 mins):Health News:Automotive Airbag Market Worth $23.6 Billion and Automotive Seat Belt Market Worth $9.0 Billion by 2019 – New Report by MarketsandMarkets 2Health News:Automotive Airbag Market Worth $23.6 Billion and Automotive Seat Belt Market Worth $9.0 Billion by 2019 – New Report by MarketsandMarkets 3Health News:Automotive Airbag Market Worth $23.6 Billion and Automotive Seat Belt Market Worth $9.0 Billion by 2019 – New Report by MarketsandMarkets 4Health News:August is Children’s Eye Health Month, Exams Must Check for Pediatric Dry Eye 2Health News:August is Children’s Eye Health Month, Exams Must Check for Pediatric Dry Eye 3Health News:Good Shepherd Health Care System Retains B. E. Smith to Recruit New COO 2Health News:Good Shepherd Health Care System Retains B. E. Smith to Recruit New COO 3Health News:Hope For The Warriors Announces Got Heart, Give Hope Celebration in Washington, DC 2Health News:Etransmedia Makes Exclusive List for the Eighth Consecutive Year in Inc. Magazine 2Health News:Etransmedia Makes Exclusive List for the Eighth Consecutive Year in Inc. Magazine 3
Other TagsOther Tags