and males make gametes called sperm. Both egg and sperm cells begin as identical germ cells and are produced through a process of cell division called meiosis, which reduces the number of chromosomes in the germ cell from 46 (diploid) to 23 (haploid...
containing a hydrocarbon substrate and the separation of the cells produced from the culture medium as a proteinaceous product are carried out in the presence of a surfactant product of ethylene oxide and propylene oxide of average molecular weight of 1750 to 2250, no other surfactant being ...
Although it has now been 10 years since the first cloned mammals were generated from somatic cells using nuclear transfer (NT), the success rate for producing live offspring by cloning remains <5%. Nevertheless, the techniques have potential as import
No cells were added to flask C. The final volume in each flask was 100 ml. The contents of all flasks were strongly aerated at 30° C. After 3 h, cells were removed from the contents of each flask by centrifuging ; the super- natants were then analysed for their free fluoride ...
Effect of the photoperiod on the time schedule of egg mass production in Lymnaea stagnalis, as induced by ovulation hormone injections In the pulmonate snail Lymnaea stagnalis the neurosecretory caudo-dorsal cells (CDC) produce an ovulation hormone (CDCH) which is released at the periphery of ...
The production method of germline chimeras by transfer of primordial germ cells (PGCs) can be used in gene banking of chickens. However, little is known about the reproductive capability of offspring obtained by mating of male and female germline chimeras. To cryopreserve chicken genetic resources ...
FUEL CELLS – MOLTEN CARBONATE FUEL CELLS | Systems G.Huppmann, inEncyclopedia of Electrochemical Power Sources, 2009 Other fuels − methanol A HotModule CHP plant is under operation since September 2004 in Berlin, Germany at BEWAG facilities, which is a local utility company in Berlin (Figure...
We needed to increase the volume ofproduction... 我们需要提高产量。 柯林斯高阶英语词典 It expected to maintainproductionof cars at the same level as last year. 预期今年汽车的产量会和去年持平。 柯林斯高阶英语词典 These proteins stimulate theproductionof blood cells. ...
Ruegg, T. L. et al. Jungle Express is a versatile repressor system for tight transcriptional control. Nat. Commun. 9, 3617 (2018). Article PubMed PubMed Central CAS Google Scholar Wang, S. et al. NaCl enhances Escherichia coli growth and isoprenol production in the presence of imidazoliu...
Combining cryopreservation of germline stem cells (GSCs) with their subsequent transplantation into recipient fish is a powerful tool for long-term preservation of genetic resources of endangered fishes. However, application of this technique has been limited because endangered species sometimes have small...