Mendel's experimental organism was a common garden pea (Pisum sativum), which has a flower that lends itself to self-pollination. The male parts of the flower are termed the anthers. They produce pollen, which contains the male gametes (sperm). Full article >>>
This is sometimes referred to as self-pollination, but this is not synonymous with autogamy. Full article >>>
But two thirds of the round seeds in the F2 were heterozygous and their self-pollination produced both phenotypes in the ratio of a typical F1 cross. Phenotype ratios are approximate ... Full article >>>
to the stigma of the same flower or sometimes to that of a genetically identical flower (as of the same plant or clone). Ability of many plantspecies to naturally and successfully fertilize within one individual. Also called self-pollination. Full article >>>
It is a plant model system of choice because of the additional advantages of short generation time (about five weeks), high seed production (up to 40,000 seeds per plant) and natural self-pollination ... Full article >>>
Self-pollination. Pollen of one plant is transferred to the female part of the same plant or another plant with the same genetic makeup. Selectable marker. Full article >>>
(Date:7/3/2008)...rs of such marine creatures as clams, sand dollars...144 million years ago with no clear trend afterwar...ers. This contradicts previous work showing dramat...ay shed light on future diversity. , "Some of th...is happening today from global warming," says Joce...
(Date:7/3/2008)...,s little the average person can do to stem the ri...d other energy sources. But by improving our energ...can use less energy and save money. , IEEE-USA, ...une, says that, "Through energy efficiency improve...reduce the depletion of fuel resources; increase e...
(Date:7/3/2008)...er the shape and size of microscopic three-dimensi...eloped by biological chemist Jason Shear and his f...ty of Texas at Austin. , Shear and Kaehr fabrica...tructures, known as hydrogels, and have shown that...g the chemistry of the environment in which they w...
(Date:7/2/2008)... Standing in a greenhouse at the University of Rho...t appeared that something had gone terribly wrong....d last February in hundreds of small pots were dea...sn,t surprised. That,s because the pots had been ...ths, and few varieties of grass can put up with th...
...s -- 499,008 infants -- were born prematurely (les...he report released by the National Center for Heal...(or about 480,000 babies) in 2002 -- and an increa...gan tracking premature births in 1981. The prematu...year since then except for slight dips in 1992 and...
... body, immune mechanisms kick in to fight them off...gen levels, and a protein called HIF-1 alpha regul...r destroying the foreign pathogens are effective i...aring in the July 1 print issue of The Journal of ...ues from UCSD show for the first time that inducti...
... body, immune mechanisms kick in to fight them off...gen levels, and a protein called HIF-1 alpha regul...r destroying the foreign pathogens are effective i...aring in the July 1 print issue of The Journal of ...ues from UCSD show for the first time that inducti...
...nhibit a tiny soybean-destroying organism is an im...o a Purdue University plant pathologist. , Soybean...billion annually in crop losses in the United Stat...ty. However, techniques are available to find soil...ndworms, said Andreas Westphal, assistant professo...