In the essay, the point is made that perhaps the environment of the children has already guided their preferences in toys before the experiment was conducted. given the choices below, what is the earliest age at which environment could potentially shape the preferences of a child?
a. at age 3 or 4, when children are dressed in gender-specific clothing
b. at age 5 or 6, when children are given genderspecific toys
c. in middle school, where there is pressure to participate in generation sports and activities
d. in high school, where there is pressure to date people with certain types of personalities

a. at age 3 or 4, when children are dressed in gender-specific clothing

Explanation:

what is the earliest age at which environment could potentially shape the preferences of a child is at age 3 or 4, when children are dressed in gender-specific clothing

prokaryotic cells do not have a nucleus in which the dna is stored in, it floats freely inside the cell.

eukaryote cells do have a nucleus in which the dna is stored in.

"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."