A farmer is raising rabbits. The average body weight in his population is 3kg. The farmer selects the 10 largest rabbits in the population, whose average body weight is 4kg, and interbreeds them. If the heritability of body weight in the rabbit population is 0.7, what is the expected body weight among the offspring of the selected rabbits?

The expected weight increase that is expected of offspring of selected parents is 0.7 kg

Explanation:

Given from the question:

The average body weight in his population of rabbits = 3 kg

heritability of body weight in the rabbit population (h^2)=0.7

Average body weight of the 10 selected largest rabbit =4 kg

(R) = response to selection

selection differential (S)= Average body weight of the 10 selected largest rabbit - The average body weight in his population of rabbits

selection differential (S)= 4-3=1 kg

But heritability of body weight in the rabbit population (h^2)=0.7

Then, Heritability of body weight in the rabbit population (h^2) can be calculated using the formula below;

Heritability of body weight in the rabbit population (h^2)=

response to selection (R) / selection differential (S)

response to selection (R) = Heritability of body weight in the rabbit population (h^2) × selection differential (S)

R= h^2 x S= 0.7 x 1kg= 0.7 kg

The expected weight increase that is expected of offspring of selected parents is 0.7 kg

Average weight of offspring = The average body weight in his population of rabbits + heritability of body weight in the rabbit population (h^2)

Average weight of offspring= 3 kg + 0.7 kg = 3.7kg

Therefore, the Average weight of offspring is 3.7kg and The expected weight increase that is expected of offspring of selected parents is 0.7 kg

How did the Salem Witch trials begin?

The Salem witch trials began in 1692, after some girls in Salem Village, Massachusetts, said that they were possessed by the devil and blamed three women for having afflicted them: a slave a beggar and an old impoverished woman.  

What happened after a few girls were accused of being witches?

In September 1692, the hysteria began to spread throughout Massachusetts, and a special court was established to hear the cases. Next June, the first woman was hanged and eighteen others followed. By September 1962 the hysteria had extended and public turned against the trials,

What’s one example of a test an accused may be asked to complete?

One example that an accused may be asked to complete is: Lying tests and questionnaires.  

How was physical evidence considered in the trials?

very little physical evidence was considered. Usually behaviors were used as evidence.

What role did witnesses play in the trials?

Witness usually had to go along with the General Court.

What happened if an accused confessed to witchcraft?

If an accused confessed they were sentenced to death.

How many people were executed for witchcraft in Salem by 1693?

Twenty people had been executed by 1693  

Why did the trials end ?

Judge Samuel Sewall confessed he may have erred and in January 1697, the General Court ordered the community to fast and soul-search.  In 1702, the court declared the trials illegal and soon passed a bill granting £600 restitution to the victims’ heirs.