fertilisation造句
1 Secondly, of course, fertilisation adds genetic material.
2 To trigger parthenogenesis, then, Loeb had to simulate fertilisation.
3 For them, fertilisation within the female is the rule.
4 So, to simulate fertilisation, it is necessary only to mimic this disruption.
5 In vitro fertilisation is only the first of a long line of reproductive technologies which may be developed in the future.
6 Unless farm fertilisation increases, atmospheric deposition of nitrogen, especially as nitrate, may well overtake deposition from land runoff.
7 Bovine in vitro fertilisation was developed in the 1990S, and is still not very reliable.
8 I think in vitro fertilisation is wonderful for childless couples, but I could never consider that option for us.
9 He was omnipotent and instrumental in the fertilisation of the earth, having divinely bestowed the first rain.
10 Such fertilisation within the body is unusual among water-living animals.
11 In practice,[www.] fertilisation requires tight coordination between the sperm and the oocyte.
12 Parental consent to in vitro fertilisation does not deprive the child of his legal right of action.
13 But the latest fad is promoting in vitro fertilisation ( IVF ).
14 Scientists have identified why excessive fertilisation of soils is resulting in a loss of plant diversity.
15 Embryos developed by in vitro fertilisation Methods : Would be routinely scanned for genetic illnesses.
16 Since the sperm must swim to the archegonium, fertilisation cannot occur without water.
17 The medical professional bodies reply that development from fertilisation onwards is a continuum.
18 Self - pollination, and subsequently self - fertilisation, in orchards always takes place to some extent.
19 His sperm then covers the eggs as they are laid and fertilisation occurs within 10 to 15 minutes.
20 Because of these difficulties, governments might decide to impose strict liability for compensation on the practitioners of in vitro fertilisation.
21 Elevated progesterone levels mimic pregnancy and this delays ovulation, prevents fertilisation or stops implantation of the embryo in the womb.
22 Its practitioners have now started to explore the legal hornet's nest likely to be stirred up by in vitro fertilisation.
23 Only after several days does it fuse with the egg and so complete the long process of fertilisation.
24 Dr Davies suggests that it may have happened here becausefish have external fertilisation.
25 The process uses a laser to make a small incision in the outer membrane of the egg, from which doctors can extract the polar body containing the 23 chromosomes that were expelled before fertilisation.
26 In the presence of water, sperm from the antheridia swim to the archegonia and fertilisation occurs, leading to the production of a diploid sporophyte.
27 The technique is derived from a procedure already used during in vitro fertilisation ( IVF ).
28 A special kind of polygynous mating system where aggregated males display and females attend primarily for the purpose of fertilisation.
29 Singer Celine Dion is reportedly pregnant with twins after her sixth attempt at in - vitro fertilisation.