You genetically engineer an Arabidopsis plant to have a mutation in gene B. Which of the following phenotypes would you expect to see as a result of this mutation?
A. sepals-petals-sepals-petals
B. sepal-sepal-carpel-carpel
C. sepals-petals-stamens-carpel
D. carpels-carpels-stamen-stamen
E. petals-petals-stamen-stamen
Answer: B
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The first air-breathing land animals were:a
vertebrates. b. amphibians. c. snails. d. reptiles. e. arthropods.
Differences among organisms are caused by differences in the _____
A) elemental composition from organism to organism B) types and relative amounts of organic molecules synthesized by each organism C) sizes of the organic molecules in each organism D) types of inorganic compounds present in each organism
The scientific approach known as ________ involves analysis at a simpler or more basic level of organization than the structure or function to be explained.
A) reductionism B) dualism C) atheism D) longism
Which of the following may be found in blood plasma?
A) water and proteins B) water, proteins, nutrients, and ions C) water, proteins, and ions D) water