Genetics and Evolution

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In cows, long hair is dominant to short hair. In a cow that is heterozygous for long hair, what percentage of the cells undergoing meiosis will carry the dominant allele?

In squash plants, yellow fruit (Y) is dominant to white fruit (y). If two plants heterozygous for yellow fruit are crossed, what are the possible genotypes of the offspring?

People who have been exposed to excessive radiation often experience mutations. If these mutations only occur in somatic (body) cells, these people may —

The chances of developing cancer, diabetes, or sickle-cell anemia are higher if a family member also has the disorder because they are —

DNA that is derived from the DNA of two or more different species is called —

Which of the following is an example of a genetically engineered organism?

Lamarck was an early scientist who studied the development of characteristics in organisms over time. Which of the following choices best describes his views on how organisms change over time?

In rabbits, short fur (F) is dominant to long fur (f). According to the Punnett square, what is the chance of two heterozygous short-haired rabbits having offspring with short fur?