Tom with type AB blood marries Anna. They have two children: Eric with type B blood and Jessica with type A
blood. Anna’s father Paul has type O blood, and her mother Elizabeth has type A blood.
a. What are the genotypes of Tom and Paul?
b. What are the possible genotypes and phenotypes of Anna?
c. What is the genotype of Eric?
d. Is it possible to define Jessica’s genotype and phenotype based on the information provided? Why or why not?

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

What tool do geneticists use to predict the outcome of genetic crosses? a.karyotype b.punnett square c.centrifuge

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.