The chromosome theory of inheritance states that
A) chromosomes that exhibit mutations are the source of genetic variation.
B) the behavior of chromosomes during meiosis and fertilization accounts for patterns of inheritance.
C) the behavior of chromosomes during mitosis accounts for inheritance patterns.
D) humans have 46 chromosomes.
Answer: B
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Most genetic engineering involves the use of ____
a. yeast and plants b. plants and E. coli c. yeast and mice d. bacteria and mice e. yeast and bacteria
What is a primary function of growth hormone?
A. Inhibits loss of calcium from bone B. Stimulates bone growth C. Lowers blood glucose level D. Initiates stress response E. Raises blood glucose level
A researcher has used in vitro mutagenesis to mutate a cloned gene and then has reinserted the mutated gene into a cell. To have the mutated sequence disable the function of the gene, what must then occur?
A) recombination resulting in replacement of the wild type with the mutated gene B) use of a microarray to verify continued expression of the original gene C) replication of the cloned gene using a bacterial plasmid D) transcription of the cloned gene using a BAC