منابع مشابه
Better than sex
Asexual organisms are of fascination to biologists because most multicellular organisms have chosen sex in some form or other for reproduction. The interest stems from the clear theoretical advantage of asexual reproduction which results in the transfer of a full complement of genes to an offspring rather than the 50 per cent that results from sexual reproduction. Researchers are keen to determ...
متن کاملBetter than men? Sex and the therapy/enhancement distinction.
The normative significance of the distinction between therapy and enhancement has come under sustained philosophical attack in recent discussions of the ethics of shaping future persons by means of advanced genetic technologies. Giving up the idea that whether a condition is normal or not should play a crucial role in assessing the ethics of genetic interventions has unrecognized and strongly c...
متن کاملHuman Breast Milk Provides Better Antioxidant Capacity than Infant Formula
Human milk contains all of the constituents that are required for the optimal growth and development of a neonate. It supports the development of brain, immune, and physiological systems. This study aimed to consider the significance of breast milk in preventing oxidative stress by comparing total antioxidant capacity (TAC) in breast and formula milk for premature infants, demonstrating the rel...
متن کاملHuman Breast Milk Provides Better Antioxidant Capacity than Infant Formula
Human milk contains all of the constituents that are required for the optimal growth and development of a neonate. It supports the development of brain, immune, and physiological systems. This study aimed to consider the significance of breast milk in preventing oxidative stress by comparing total antioxidant capacity (TAC) in breast and formula milk for premature infants, demonstrating the rel...
متن کاملEvolution of bacterial transformation: is sex with dead cells ever better than no sex at all?
Computer simulations of bacterial transformation are used to show that, under a wide range of biologically reasonable assumptions, transforming populations undergoing deleterious mutation and selection have a higher mean fitness at equilibrium than asexual populations. The source of transforming DNA, the amount of DNA taken up by each transforming cell, and the relationship between number of mu...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2003
ISSN: 0960-9822
DOI: 10.1016/s0960-9822(03)00229-x