A
ssessments-delivery/ua/mt/launch/49 071798/851896052/aHROCHM6Ly9m MS5hcHAUZWRtZW50dW0uY29tL2dYXluZXIv c2V
Scientific Theories and Laws: Mastery Test
Is it right or wrong to use genetic
engineering to produce new food
products?
Do the types of organisms found in
the fossil record appear in consistent
sequences in different parts of
the world?
If a new gene is added to the genome
of a tomato species, will that species
be more resistant to insects?
Should humans use biotechnology
to bring extinct organisms from the
fossil record back to life?
What are the most common social
settings that tend to produce
accomplished artists?
Are Michelangelo's paintings more
impressive than Rembrandt's?
can be answered
through science
cannot be answered
through science

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."

i think the answer would be d

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.