Variegated four o'clock leaves have white patches among the green areas due to
A) the presence of cells in which most of the mitochondria have a mutation that blocks electron transport.
B) the presence of cells in which most of the chloroplasts have a mutation that prevents synthesis of chlorophyll.
C) an incompletely penetrant mutation in a nuclear gene that prevents production of chlorophyll.
D) a recessive mutation in a nuclear gene that results in a defect in ribosomes.
B) the presence of cells in which most of the chloroplasts have a mutation that prevents synthesis of chlorophyll.
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________ is the science that analyzes energy changes in a collection of matter.
Fill in the blank(s) with the appropriate word(s).
coli 0157:H7 characteristics include
What will be an ideal response?
A yellow jacket, an insect in the order hymenoptera, stung you. Then a wasp, an insect in hymenoptera, stung you as well. A hornet, an insect in hymenoptera, stung you last. It is an observable pattern that all insects in this order must have stingers. The type of reasoning this represents is
A. deductive reasoning. B. inductive reasoning. C. reductionism. D. comparative reasoning.
For a given locus, in a population with two alternative alleles, the allele frequencies p + q = ________
A) 1.0 B) p × q C) 100 D) 0