Question

in tomato genotype aabbcc produces 100g of tomatoes and AACC produces 160g tomatoes what is contribution of polygene in the production of tomatoes : ?

Answer 1

Genotype aabbcc represents recessive character and AABBCC represents dominant character.
Dominant genes- 160g 
Recessive genes- 100g 
Difference between dominant and recessive genes is 60g.
So divide the 60g excess equally to 6 genes (aa/bb/cc/AA/BB/CC) that will be 10g for each gene.

Therefore, the correct answer is 10g contribution of polygene in the production of tomatoes

Answer 2

The contribution of polygene in the production of tomatoes is 10 g.

Explanation:

• The homozygous recessive genotype is aabbcc.

• The homozygous  dominant genotype is AABBCC.

So the total number of alleles in each genotype is 6.

• Genotype aabbcc produces 100 g of tomatoes.

So the value of homozygous recessive is 100 g.

• AACC produces 160g tomatoes.

So the value of homozygous dominant is 160 g.

• The contribution of polygene in the production can calculate by a formula.

i.e. ( the value of homozygous dominant - the value of homozygous recessive) ÷ the total number of alleles

∴ 60/6 = 10 g.