Which of the following plant hormones stimulates development of an abscission zone in the leaf petiole?

A. ethanol
B. gibberellins
C. abscisic acid
D. auxin
E. ethylene


E. ethylene

Biology & Microbiology

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The term genome refers to the complete complement of sequences and genes that an organism possesses

Indicate whether the statement is true or false

Biology & Microbiology

The appendages in both fishes and tetrapods develop from buds of ____, the middle embryonic tissue layer

a. ectoderm b. endoderm c. mesoderm d. epiderm e. hypoderm

Biology & Microbiology

What is the largest single source of radiation exposure for the average person in the U.S.?

a. radon b. medical X-rays c. cosmic d. nuclear medicine e. consumer products

Biology & Microbiology

In the analysis of quantitative traits, positions on chromosomes called quantitative trait loci (QTLs) are often discussed. In the same context, restriction fragment length polymorphisms (RFLPs) are also discussed

What is the relationship between QTLs and RFLPs?

Biology & Microbiology