A research had 15 pure wild mice which were Brown and all were tamales .they were all mated with a male called bob. all offspring were brown. these were then crossed among themselves with following results: 293 brown and 115 white 1. determine the colour of the bob
2. determine which colour is dominant
3 work out the ratio of brown to white in grandchildren
4. if the researcher crosses two of the white grandchildren determine the colour of there offspring
use the punnet square to work out your answers​

How are the tortoises that darwin observed on the galápagos islands similar to the anoles that losos studied

Look at the picture below . what does this picture represent ?

In 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? in 1959, doctors began using the powerful antibiotic methicillin to treat infections of staphylococcus aureus, but within two years, methicillin-resistant strains of s. aureus (mrsa) appeared. how did the resistant strains of s. aureus emerge? staphylococcus aureus bacteria that were able to synthesize cell walls using a protein that was not affected by methicillin survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, some bacteria began to synthesize cell walls using a protein that was not affected by methicillin. these bacteria survived the methicillin treatments and reproduced at higher rates than did other individuals. over time, these resistant individuals became increasingly common. in response to treatment of staphylococcus aureus infections with methicillin, bacterial populations gradually began to synthesize cell walls using a protein that was not affected by methicillin.