Approximately 4 billion years ago Archaea and Bacteria diverged as being distinct from each other
Indicate whether the statement is true or false.
Answer: TRUE
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This cellular structure lacks a membrane:
A. microbody B. nucleus C. nucleoid D. endoplasmic reticulum E. Golgi body
When choosing among competing cladograms, the preferred hypothesis is the one that is the simplest for all characters and their states. This is also known as
A. the maximum likelihood approach. B. the principle of parsimony. C. the Bayesian method. D. the molecular clock. E. the cladistic approach.
A diet of primarily grains would likely be deficient in which two amino acids?
a. isoleucine and leucine b. isoleucine and lysine c. methionine and tryptophan d. methionine and lysine e. valine and lysine
To make a transgenic Huntington Disease mouse, a copy of the mutant human HD gene was cloned into a vector, and the next step was to _____
1.transfer the vector directly into the foster mother mouse 2.microinject the vector into the nucleus of a fertilized mouse egg 3.transform bacteria using the engineered plasmid 4.insert the sequence into the genome of a virus and infect a mouse with the virus