The F2 generation (the larvae measured in comparison) is shown in the graphs at the bottom of this figure. The cluster of bollworms at lower larva weights would have which genotype?

A. Rr
B. Rr or rr
C. rr
D. RR
E. Rr or RR


A. Rr

Biology & Microbiology

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Density-dependent population regulation occurs only at high population densities

Indicate whether the statement is true or false

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Which of the following will increase the unloading of oxygen within the tissue?

A) increased hydrogen ion concentration only B) increased PCO2 only C) increased body temperature only D) both increased hydrogen ion concentration and increased body temperature E) increased hydrogen ion concentration, increased body temperature, and increased PCO2

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Trichomes _____

A) absorb sunlight, increasing the temperature of leaves B) open and close for gas exchange C) repel or trap insects D) increase water loss from leaves

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