Consideremos dois pares de genes CD/cd durante a meiose. Supondo-se que ocorre crossing entre eles numa frequência de 16%, os gametas formados serão:

it creates acid rain

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.

sex cells are usually half's then they find another half and make a fertilize egg