The expression of ABO blood types depends on the activity of a second gene H. Explain how an H gene allele can affect the expression of the ABO blood grouping system known as the Bombay phenotype? What do we call this type of interaction where one gene can affect the expression of a second gene? 

According to a new study, the number of cases of whooping cough has steadily increased since 2008 peaking in 2010. The rate of voluntary vaccine withdrawal (not receiving a vaccine shot) for whooping cough increased from 2007 to 2010.  Whooping cough vaccine has a known effect on the number of whooping cough infections, and a large majority of individuals were not vaccinated. Which would best explain the relationship between whooping cough infections and vaccine withdrawal?

The genes of an eukaryotic cell are located in the

Which of the choices are listed from smallest to largest, or lowest to highest level of organization?

Stem cells have a variety of different uses. Highlight one use of stem cells and give a source of stems cells for an individual. 

Body parts derived from ectoderm include the 

Stem cells made from reprogrammed cheek cells would most likely be considered a(n)

pAn intense fear of an environmental stimuli is a/p

 To ensure proper replacement, stems cells divide by meiosis when differentiating into somatic cells. 

pThomas was born with a developmental disorder, characterized by low IQ, a thyroid disorder, and a distinctive physical appearance. Thomas most likely has/p