The size of DNA is often given in the number of ________ that it contains.
What will be an ideal response?
base pairs; nucleotides
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Hybridization between different species is rare because it ____
a. requires the breakdown of a barrier preventing interbreeding b. causes lethal mutations in hybrid offspring c. leads to the exchange of genes between closely related species
d. leads to gene flow between species e. contradicts the species concept
Four of the five answers listed below are
related by being plant gender specific. Select the EXCEPTION.
a. carpel b. ovary c. stamen d. style e. stigma
It is okay to eat snacks during class to keep your blood sugar high
a. true b. false
Which of the following hormones are not matched with the proper function?
A. gibberellic acid: mobilizes seed resources for the developing embryo B. auxin: stimulates stem elongation C. cytokinins: stimulates cell division D. ethylene: inhibits fruit ripening E. abscisic acid: maintains seed dormancy