Answer:
1 at one is the answer
if I'm right pls make me braniest
Answer:
True.
Explanation:
in the early 1900s development of Salvarsan, an arsenic-based drug to treat syphilis.
Answer: The correct answer is -
d) a dominant trait that depends on the presence of only one of many dominant alleles.
Glaucoma is an autosomal dominant trait, meaning that presence of single copy of the defective gene is enough to cause the disease.
It corresponds to a group of diseases, which cause damage in the optic nerve, leading to loss of vision and if not treated, it ultimately leads to blindness.
Thus, option D) is the right answer.
It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
Stressor due it comes from an external condition or event.
