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Some cells, like human muscle cells, have several nuclei per cell. How could such multinucleated cells be explained?

Match each of Mendel’s principles of heredity to the stage of meiosis in which they are demonstrated.

What is the primary goal of “surgical conscience” in sterile technique?

Feather color in budgies is determined by two different genes, Y and B, one for pigment on the outside and one for the inside of the feather. YYBB, YyBB, or YYBb is green; yyBB or yyBb is blue; YYbb or Yybb is yellow; and yybb is white.   A blue budgie is crossed with a white budgie. Which of the following results are NOT possible?

Consider the following diagram of a replication bubble. Solid lines represent parental DNA strands; dotted lines represent newly-forming daughter strands.  One of the leading strands has been labeled for you. Use this information to answer the next two questions.

Which term is used to describe the absence of all microbial life, including spores?

Who was the first European explorer to arrive in Florida?

Given the table of recombination frequencies, place the genes in the correct order from left to right on the genetic map.

Which of the following sequences shows the correct life cycle for humans?

Choose the correct labels for the ends of the parental DNA strands. D: [D] E: [E] F: [F] G: [G]