Which two of the following are used during the process of genetic engineering?
Enzymes
Placebos
Vaccines
Vectors
White Blood Cells

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

Which of the following organisms are capable of self-fertilization? a. plants b. tigers c. humans