What has to be the genotype of an organisms alleles for its recessive traits to appear?

2 recessive traits (two lower cased letter if that is what you are referring to)

Explanation:

since the dominate trait can appear if the allele has 1 dominate and 1 recessive, a allele must have 2 recessive genes. (b,b) would work but (B,b) won't work

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.