Tetrodotoxin is a poison found in pufferfish and some other animals. most cases of human tetrodotoxin poisoning occur when a person eats cooked or uncooked pufferfish. the most strongly toxix parts are the liver and ovaries; muscle and testes are weakly toxic. the lethal dose (LD50) for humans is less […]

Two Easy Biology Assignments Review information on genetic disorders on the National Human Genome Research Institute Site: http://www.genome.gov/. Choose a genetic disorder that can be inherited from a parent. Write a 525- to 700-word paper on the genetic disorder. Include the following in your paper: Summarize the Chromosomal Theory of […]

Evolution of a new trait typically takes many generations. Yet a dramatic shift in the extent of armor plating the the lake Washinton stickleback population occurred in the 50 years following the cleanup of the lake. Which of the following best describes the mechanism of t he rapid evolution of […]

1. Which of the following mechanisms would be necessary in order for Lamarck’s theory of evolution to be valid?a) The nervous system causes specific mutations of DNA.b) Mutations occur at random locations in DNA.c) All parts of the body contribute to the genetic information in the gamete.d) Proteins direct their […]