In genetics, the dash symbol (–) is a "wild card" that stands for either the dominant allele or the recessive allele; for example, a– means the individual has either the genotype aa or aa. two genes that undergo independent assortment affect fruit color in summer squash. each gene has two alleles, one of which is dominant for fruit color. genotypes of the form a– b– and a– bb have white fruit, genotypes of the form aa b– have yellow fruit, and genotype aa bb has green fruit. what ratio of white : yellow : green is expected from the cross aa bb × aa bb?

 12     :    3      :    1

white : yellow : green

Explanation:

Given that genes A and B control the fruit colour in following ways:

A_B_ or A_bb = white

aaB_ = yellow

aabb =  green

The genes undergo independent assortment so:

AaBb X AaBb =

A_B_ : A_bb : aaB_ : aabb

  9     :    3     :   3      :   1

white : white : yellow: green

        12          :    3     :   1

Hence, ratio of white : yellow : green is 12: 3: 1

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.