You've discovered a new plant species in which

green fruit color (g) is recessive to yellow fruit color (G), and

long fruit shape (l) is recessive to round fruit shape (L).

The genes for fruit color and shape are located on the same chromosome and are 12 m. u. apart.

Determine the proportions of progeny of each phenotype produced for this cross: Gl/gL x Gl/gL

All the crossing will be like this after realizing it:

Explanation:

Gl x Gl

GG, Gl, Gl, ll

gl x gl

gg, Lg, Lg, LL

On the first crossing we'll have 50% Gl and both other genotypes will be 25%

On the second crossing we'll have 50% Lg and both other genotypes will be 25%.

geologic time scale (for gradpoint) =)

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.