An experiment that will inactivate a homeotic gene is called a ________
a. mutation
b. control experiment
c. knockout experiment
d. flawed experiment
e. regulatory experiment
c
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If a strict vegan were planning a meal with a good mix of amino acids, he or she would probably combine a legume (such as beans) with
a. eggs. b. leafy vegetables, such as spinach. c. root vegetables, such as yams. d. grains, such as rice or wheat. e. starchy fruits, such as bananas and plantains.
The area in which there is a spark discharge in the accompanying figure represents ____
a. sunlight energy in the environment. b. heat energy in the environment. c. electrical energy in the environment. d. ionizing radiation in the environment. e. the explosion of the hydrogen gas to release energy for the reactions.
Which of the following most often should lead to allopatric speciation?
A) Habitat isolation B) Behavioral isolation C) Gametic incompatibility D) Mating time differences
The function of BMP4 is to ________ while the function of gremlin is to ________ BMP4.
A. cause apoptosis; act as a catalyst for B. cause apoptosis; inhibit the function of C. induce mitosis; amplify expression of D. inhibit growth; amplify expression of E. induce mitosis; inhibit the function of