How long ago did two species of birds share an ancestor
Answer:
E. 1/16
Explanation:
In a duplicate dominant epistasis, when one locus presents a dominant genotype and the other presents a recessive genotype, the dominant one hides the effective of the recessive gene. Therefore, a recessive phenotype will only be observed when both genes are recessive homozygous (aabb).
Assuming a doubly-heterozygous mating (AaBb x AaBb), the probability that both genes are recessive homozygous is:

1/16 of offspring are expected to show the recessive phenotype.
As I know the values of variables
that are registered with a number that have meaningful sense, is called
quantitative data. Depending on what value has the potential to take a
variable, are two types of quantitative data: discrete and
continuous.
Discrete - this is such a variable
that can only take values from a list of specific
numbers.
Continuous shall assume any variable
that is not discrete. It takes the value of a certain period.