Coloration in mockingjays is determined by a single gene. The G allele leads to grey colored feathers and the g allele leads to all white feathers. If two heterozygotes are crossed, what would be the phenotypic ratio in the F1 progeny? What would be the genotypic ratio in the F1 progeny

F1 genotype  =  1: 2: 1

F1 phenotype = 3:1

Explanation:

given data

G = allete for grey colour feather

and

g = allele for white colour fether

and

Gg = genotype of heterozygotes

we do here cross of two heterozygotes that is

parantal generation                       Gg        ×             Gg          

                                                          ⊥                          ⊥                        

                                                  G            g              G          g

                                                                      gametes    ⇒ F1 generation

F1 genotype  =  1: 2: 1

F1 phenotype = 3:1  

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation: