A female who is heterozygous for a recessive, sex-linked trait is a(n) ________ for that trait
Fill in the blank(s) with correct word
carrier
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Refer to the figure above (first three rows of the periodic table). What element has properties most similar tocarbon?
A) boron B) silicon C) nitrogen D) aluminum E) phosphorus
Periodical cicadas may be able to interbreed but never do because they emerge to breed at different times. This is an example of a ________ isolating mechanism categorized as ________ isolation
a. prezygotic / behavioral b. prezygotic / temporal c. postzygotic / mechanical d. postzygotic / hybrid inviability
Blood pressure forces fluid through the spaces between cells in nephrons during the process of ____
a. filtration b. reabsorption c. secretion d. elimination e. excretion
Active transport can only move a substance with a concentration gradient
1.True 2.False