Reproduction and Organism Fasting
Reproduction is an energetically demanding activity. While a majority of organisms favor
mating with the opposite sex, others prefer another form of reproduction known as:
Self-fertilization - The fusion of male and femal
Phylogeny of Lizards and Snakes
Resolving the Phylogeny of Lizards and Snakes with Extensive Sampling of Genes and
Just by reading the title, it should give more insight into the debate presented in
the previous paper. Hopefully there is a better-
Interpretation of Visual and the Difference Between Male and Female Strains of
Figure 1. Number of male offspring as a result of crossing of strains and treatments to
environment. The two C. elegans strains that were worked with were N2 and Hawa
Who Speaks Forked Tongue
Main question is whether we should reconsider DNA is always inherently superior for
inferring lifes history. Molecular vs. morphological data.
o Claim that molecular trees are not always correct
o There are problems with molecular
Hermaphroditic Caenorhabditis elegans
Caenorhabditis elegans are a unique species of free-living worm. Because they do not need a
host to survive like other parasitic worms.
o While the tendency of many organisms is to cross breed with the opposite sex,
The Natural Populations of Organisms
There is a trend towards self-fertilization in natural populations of C. elegans, resulting in
a low abundance of males.
Another article examined inbreeding versus out breeding and the effect on fitness.
In Class Experiment of Hermaphrodites
Each of the two plates was set up a total of five times (producing ten total plates for that specific
trial). The second trial held two Hawaiian hermaphrodites and two Hawaiian males, again testing
both with and witho
The Role of Environment in Reproduction
While exposing organisms to a stressful environment with temperature fluctuation seems to
present a consistent result, it is unclear if different strains are better adapted to changes like
this in an environment.
Self-Fertilization Among Plants
Self-fertilization is a favored form of reproduction among most plants.
o A study done by Wright, Kalisz and Slotte examines the evolutionary reproductive
change from out crossing to self-fertilization seen in plants.
My Analysis of the Male Offsprings in Different Environments
Figure 1.Two strains of C. elegans were placed in stressful and benign environments. The graph
represents the average amount of males in a population produced by a single hermaphrodite of that