Fill This Form To Receive Instant Help

Help in Homework
trustpilot ratings
google ratings


Homework answers / question archive / A gene has two alleles: the dominant allele (A), and the recessiveallele (a)

A gene has two alleles: the dominant allele (A), and the recessiveallele (a)

Statistics

A gene has two alleles: the dominant allele (A), and the recessiveallele (a). Two parents mate and each one independently contributes either a dominant allele or a recessive one. For each parent there is a 70% chance of contributing the dominant allele. If the parent does not contribute the dominant allele, then assume they contribute the recessive one. 
Disease occurs if both parents contribute the recessive allele (aa). Find this probability. 
An offspring is said to be homozygous if both parents contribute the same allele. In other words, an offspring is homozygous if both parents contribute AA or aa. Find the probability that the offspring is heterozygous (i.e. not homozygous). 
Find the probability that an offspring is heterozygous or diseased. 
Suppose you weigh 100 diabetics and find that they have a mean weight of 210 lb with a standard deviation of 8 lb. Afterwards, you discover that your scale was not calibrated correctly. To adjust for this mistake, you need to add 10 lb to each subject's weight. What is the mean of the new data shifted by 10 lb?
For a standard normal distribution, Z ~ N(0,1), what is the probability that a randomly selected observation will be positive. That is, what is P(Z > 0)?
Environmental concentrations of a chemical in a body of water are undetectable if they are below 100 parts per million in concentration. Suppose we take a sample of water from which the concentration is normally distributed with mean 150 parts per million and standard deviation of 27.5 parts per million. What is the probability that the concentration will be undetectable?
The distribution of age in Washington DC is 35 with a standard deviation of 13. Assuming this distribution is normally distributed, what is the probability that a randomly selected sample of size 20 will have sample mean greater than 40?
A random selection of body temperatures taken in Fahrenheit has standard deviation of 1.8. To convert to Celsius, we use the formula C = (5/9)*(F-32) where F = the individual's body temperature in Fahrenheit. What is the standard deviation of the body temperatures on the Celsius scale?
 Assume the distribution of age in Washington DC is normally distributed. However, the standard deviation is unknown. We draw a sample of 24 individuals and find a sample mean of 37 with standard deviation of 12.2. Calculate a 95% confidence interval for the mean age in the population of Washington DC.

Purchase A New Answer

Custom new solution created by our subject matter experts

GET A QUOTE