A recessive trait is observed when an organism has 2 recessive genetic factors.
They can look at previous data and compare it to current data of the climate, from there they can estimate climate change. Example: in 1977on july 23rd the temperature was 28°C. on july 23rd 2017 the temperature was 32°C. the temperature in 40 years the temperature changed by 4°C
A tetrad consists of 2 homologous chromosomes each of which is made up of 2 sister chromatids
It will increase the amount of mosquitoes which will shift the ecosystem this will give many predators more to food to reproduce which will lead to a shortage of flying insects. hope this helps