Which of the following matings indicates that a Chlamydomonas mutant with photosynthetic defects (that resulted from a deficiency in chloroplast translation) is located on the chloroplast genome?
A) mt+ photo? × mt? photo+ yields mt+ photo? and mt? photo+
B) mt+ photo? × mt? photo+ yields all str?
C) mt+ photo+ × mt? photo? yields all str?
D) a petite × alpha wild type yields all petite
E) mt+ photo? × mt? photo+ yields mt+ photo+ and mt? photo?
Answer: B
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