When someone is said to be a carrier for a genetic disease, their genotype is ___. a. homozygous dominant

b. heterozygous

c. homozygous recessive

d. incompletely dominant

L a How many possible genotypes are there in the offspring of a RrYy x RrYy cross? a. three A four C. eight

Cross-contamination is the transfer of harmful organisms from one food item to another. true false

Which of the following statements gives a reason the blue currents are deeper than the red currents

What would most likely happen to the carbon cycle if here were no more plants on earth

What is activation energy? A. energy required by the substrate to fit into the active site B. energy supplied by enzymes in a chemical reaction C. energy released when reactants combine to become products D.

Polydactylism is a dominant trait that results in extra fingers and toes in humans. A polydactyl man marries a woman with 10 fingers and toes. They have a child that has a normal number of digits.

Why are some sediments smaller than others

Ethanol is produced during what cycle or fermentation

Explain briefly why there is a limitation on how big a cell can be. Include in your explanation the relationship between a cell's size and its surface area and how this affects what the cell can do.

Which effect is most likely caused by nondisjunction during meiosis? A. an extra chromosome B. an increase in nuclei C. increased survival benefits from traits D. only two types of nitrogenous bases