If two individuals who are heterozygous for the sickle-cell disease have children, their offspring: select one: a. will all have the genotype hbs hba. b. will have a one-quarter chance of being a sickle-cell-free homozygote. c. will all be heterozygous for the sickle-cell disease. d. will all have the sickle-cell disease. e. none of the above is correct.

If vegetable oil is made out of veggies, then what is baby oil made out of?

Which of these is not a nucleotide base found in dna?

Ascientist is investigating the effects of salinity on fish development. he places fertilized fish eggs in an aquarium that contains low salinity and observes their development. what factor would improve experimental design the most? place the fish eggs in the open ocean because that is the natural habitat include another aquarium that has normal salinity to compare to the low salinity aquarium include an aquarium that replaces salt with sugar to confirm that the effects are specific to salt grow algae with the fish eggs in order to provide adequate nutrients to the developing embryos