Genetic Variation Underlying Sexual Behavior and Reproduction

Phenotypic variation, sexual reproduction and evolutionary population dynamics

I studied the effects of introducing phenotypic variation into a well-known single species model for a population with discrete, non-overlapping generations. The phenotypes differed in their dynamic behaviour. The analysis was made under the assumption that the population was in an evolutionary stable state. Differences in the timing of the competitive impacts of the phenotypes on each other ha...

Causal Genetic Variation Underlying Metabolome Differences.

An ongoing challenge in biology is to predict the phenotypes of individuals from their genotypes. Genetic variants that cause disease often change an individual's total metabolite profile, or metabolome. In light of our extensive knowledge of metabolic pathways, genetic variants that alter the metabolome may help predict novel phenotypes. To link genetic variants to changes in the metabolome, w...

Impulsivity Processes Underlying Drug Choice and Risky Sexual Behavior

Title of Thesis: IMPULSIVITY PROCESSES UNDERLYING DRUG CHOICE AND RISKY SEXUAL BEHAVIOR Marina Alexa Bornovalova, Master of Arts, 2005 Directed By: Carl W. Lejuez, Associate Professor, Department of Psychology The current study included a sample of 86 inner-city treatment seeking drug users, comparing risky sexual behavior (RSB) across primary users of a) heroin and not crack/cocaine, b) crack/...

Sexual reproduction and genetic exchange in parasitic protists

A key part of the life cycle of an organism is reproduction. For a number of important protist parasites that cause human and animal disease, their sexuality has been a topic of debate for many years. Traditionally, protists were considered to be primitive relatives of the 'higher' eukaryotes, which may have diverged prior to the evolution of sex and to reproduce by binary fission. More recent ...

Semen characteristics sexual behavior and variation of serum testosterone concentrations in caspian ponies