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Knowledge of the chromosome morphology of a species is valuable in detecting chromosomal abnormalities, taxonomy and evolution. Despite this, chromosomal studies on rabbits is scarce in Nigeria. This study presents a description of the chromosome morphology of Oryctolagus cuniculus from Ilorin, Nigeria. Two male and one female samples received intraperitoneally 0.01% colchicine (1ml/100g body weight). The chromosomes were investigated by examining the metaphase chromosome spreads obtained from the bone marrow of the femur and humerus.

The ability of Digitaria horizontalis and Eluesine indica grass species to phytoremediate waste engine oil contaminated soil was investigated. Four (4) kg of air dried soil was measured into four (4) kg perforated plastic buckets. Waste engine oil was added to four (4) kg different soil samples to obtain different concentrations on weight basis: 0 % (control), 2 %, 4 %, 7 % and 10 % v/w oil-in-soil and allowed to stand for seven days before transplanting. At the end of 8 weeks of transplanting, the plants were harvested.

The occurrence and sources of polycyclic aromatic hydrocarbons (PAHs) were assessed in urban soils of Udu, near Warri in Delta State, Nigeria. The PAHs were quantified with gas chromatography equipped with flame ionization detector (GC-FID) after extraction and clean-up of the extracts with n-hexane/dichloromethane. The concentrations of ∑16 PAHs in the urban soils ranged from 269 µg kg-1 to 853 µg kg-1 .

The content and risk of nine heavy metals (Cd, Pb, Ni, Cr, Cu, Co, Mn, Zn and Fe) were quantified and assessed in jams consumed in Nigeria. The heavy metal contents were quantified using atomic absorption spectrometry (AAS) after digesting jam samples with mixture of acids. The quantified content (mg/kg) of the heavy metals in the jams ranged from 1 suggesting health concern for individuals consuming these jams regularly.

Whey (cassava wastewater) is an industrial residue obtained from the processing of cassava into various fermented products such as garri, fufu and lafun. Cassava whey mycoflora and their antagonistic activity against Escherichia coli were determined in this report. The associated fungi were enumerated and isolated by standard microbiological methods. The pH value of cassava whey samples was determined using an electrode pH meter while titratable acidity was by acid-base titration. Antagonistic effects of the fungal isolates against previously identified diarrheagenic E.

This study was carried out to investigate the microbiological and physicochemical characteristics of pharmaceutical raw materials used in some non-sterile preparations. A total of 16samples of pharmaceutical raw materials and 3 formulated non sterile preparations were subjected to microbial limit test, isolation and characterization of microbial contaminants and physicochemical analysis.

The effects of flood on five genotypes of Cassava (Manihot esculenta), TMEB419, 011371, I98058I, I30574 and 91934 was investigated for a period of twenty (21) days. The plants were subjected to flooding two months after establishment. Results revealed that there are three homogenous groups for chlorophyll A and chlorophyll B. It was observed that the effect of flooding on chlorophyll content of the various genotypes is dependent on time. The longer the duration of flooding the less quantity of chlorophyll in the plant.

Bacteriological analysis of fifty (50) ear swabs, collected from fifty (50) consenting male undergraduate students was conducted using routine procedures which included pour plating. Thirty one (31) Staphylococcus aureus were tentatively identified and subjected to biofilm production test and antibiotic susceptibility assay using Congo red agar and disc diffusion procedure. The presence of icaD and MecA genes students in the respective bacterial strains was ascertained using polymerase chain reaction and agarose gel electrophoresis.

Female infertility is a health condition that affects the ability of woman to conceive over a period of continuous sexual intercourse. This condition has led to psychological and social anguish, anxiety, and depression resulting from hormonal impairment, disease infection, oxidative stress, xenobiotics, environmental pollutants, and other factors. Need to say, extensive studies on the biomarkers for female infertility are still in the developmental stage in reproductive medicine to unravel remedies based on improved technologies.

Cryptococcus neoformans strains were isolated from clinical source taken from the University of Benin Teaching Hospital (UBTH) and environmental source taken from New Benin Market. Two strains were selected; clinical isolate 4832 and environmental isolate NBM5. They were determined to be of two different mating types, due to differences in their susceptibility to the antifungal agent fluconazole. In order to check the involvement of mating type locus in the virulence of C. neoformans, congenic mutants were developed.