The lac operon is active when what is present
What will be an ideal response?
ALLOLACTOSE
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Molecules that regulate defense responses via signal transduction pathways are called ____
a. complement proteins b. histamines c. macrophages d. cytokines e. defensins
Consider the work Mendel did with his pea plants. Why is the study of human genetics much more
difficult? What will be an ideal response?
Eugenics ____
a. has been scientifically tested and shown to be a valid theory b. is a dubious method for improving the human species through selective breeding c. assumes that human traits are much more influenced by environment than by genes d. had major social ramifications in Germany but is largely dismissed in the United States e. was based on faulty karyotyping and DNA analysis
Which one of the following can create new alleles?
A) natural selection B) sexual reproduction C) mutation D) genetic drift