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Q.1. Clostridium and Streptococcus are both catalase-negative. Streptococcus grows by fermentation. Why is Clostridium killed by oxygen, whereas Streptococcus is not? 2. Assume that after washing your hands, you leave ten bacteria cells on new bar of soap. You then make a decision to do plate count of the soap […]

1. Trace the pathway of a sperm from the male testes to the uterine tube of a female. 2. Fertilization involves much more than a mere restoration of the diploid chromosome number. What does the process of fertilization entail on the part of both the egg and sperm? What are […]

Assignment 1) Explain how we benefit from bacteria living on or inside our bodies. 2) Please research and give background information on the Human Microbiome Project: • What is the purpose of the project? How was the study performed?• Which isolation techniques are used to identify microorganisms?• What are some […]

A new recessive mutation in chickens that causes feather loss from the wings is being investigated. Describe the expected progeny phenotypes from a cross between a hen with feather lesswings and a true-breeding wild type rooster if: a. The gene coding for feather loss is on the Zchromosome b. The […]