If an Arabidopsis plant does not express homeotic genes during flower development
A. the plant will die.
B. the plant will only develop to the heart stage.
C. the plant will not develop cotyledons.
D. the plant will develop leaves instead of flowers.
E. the plant will develop flowers instead of leaves.
D. the plant will develop leaves instead of flowers.
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Sister chromatids are best described as two DNA molecules that have ______________
A. the same genes in the same order but that have different alleles. B. the same alleles of the same genes in a different order. C. different genes in the same order and possibly have different alleles of some genes. D. different alleles of the same genes arranged in a different order. E. virtually identical sequences of nucleotides.
Oceanography is the study of:
a. the living organisms that inhabit the sea. b. the oceans and their phenomena. c. the oceans and living organisms. d. the chemical makeup of the oceans. e. the interactions of marine organisms with their environment.
By definition, an indirect parasitic life cycle includes two different species of hosts to complete its life cycle
a. true b. false
Which of the following is a possible side effect of immunization with an inactivated vaccine?
A. contact immunity B. allergic reaction C. residual virulence D. toxicity E. both allergic reaction and toxicity