If you are talking about a chemical solution..Yes!
There are many colors a solution can end up being.
Answer:
Yy, Yy, Yy, Yy
Yellow in color
Explanation:
Let the allele for green seed be represented by "y" and the allele for yellow seed be represented by "Y"
Given Yellow seed color is dominant over green.
Genotype of true breeding green seed parents will be yy
Genotype of true breeding yellow seed parents will be YY
F1 cross

Genotype of all the offspring is heterozygous "Yy"
Phenotype of all the offspring is yellow
Answer:
B. Recessive allele
Explanation:
Only if there are two recessive alleles, the phenotype will be expressed.
Answer:
Down (plumaceous), (insulation)
Tail (pennaceous), (flight)
Contour (plumaceous/pennaceous), (flight/insulation)
Bristle (pennaceous), (flight)
Filoplume (pennaceous), (flight)
Hope this helps! :)