1)Why would sending only a small group of people to settle Mars be considered a bad idea for the future of the population ? 2)Why did it take so long for the Americas to finally be successfully colonized ?

What is a codon and where is it found

Neeed now for 1. eye color is a polygenic trait. what is the possibility of getting a green (aabb) eyed child, if parent 1 has brown eyes (aabb) parent 2 has blue eyes (aabb) 2.albinism is a recessive trait. having normal pigment is the dominant trait. what is the possibility of having an albino child if parent 1 is heterozygous normal parent 2 is heterozygous normal 3.in rabbits black fur is dominant over white fur. what is the probability of getting a rabbit with black fur if parent 1 is heterozygous black parent 2 is homozygous white

What goes in and out of a cell respiration?