. In Miller and Urey's experiment, why did they choose the gasses they chose?
(3 Points)
a. These gasses were the most likely to create life
b. These gasses were the easiest to acquire and work with
c. These gasses were the most likely to be present on early earth
d. These gasses were chosen arbitrarily (without reason)

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.

Indicate the coat color and the proportion of offspring with that color for each of the following crosses of rabbits. assume all are homozygous. agouti x albino a) 1/2 albino, 1/2 agouti b) all agouti c) 3/4 agouti, 1/4 albino

Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patients have muscles that weaken over time because they have absent or decreased dystrophin, a muscle protein. they rarely live past their twenties. how likely is it for a woman to have this condition? a) women can never have this condition. b) one-fourth of the daughters of an affected man would have this condition. c) one-half of the daughters of an affected father and a carrier mother could have this condition. d) only if a woman is xxx could she have this condition.