Variation in numbers of mutated chloroplast genomes can give rise to green, white, or variegated leaves. What color leaves do you expect in offspring of pollen from a white-leafed plant and ovules from a green-leafed plant?
What will be an ideal response?
green
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What condition best describes the endogeneity problem?
A. The distribution of the errors (Ui) is non-normal. B. One of the Xi variables is correlated with the error term (Ui). C. Some variables within Xi are perfectly correlated with other variables in Xi. D. The variance of the errors (Ui) depends on Xi.
The cell wall of bacteria constrains the ________ ________ that results from the osmolarity of the cytoplasmic contents.
Fill in the blank(s) with the appropriate word(s).
Complementation studies can be performed in bacteria by
A) gene targeting. B) forming merodiploids with one copy of a bacterial gene on an F? plasmid. C) forming merodiploids with two copies of a bacterial gene on F? plasmids. D) forming diploids with two copies of the bacterial chromosome.
Which bacterium is spherical in shape?
A. bacillus B. coccus C. spirillum