________ is often referred to as the "stress" hormone since it initiates and maintains seed and bud dormancy.
A. Gibberellins
B. Abscisic acid
C. Cytokinins
D. Ethylene
Answer: B
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A woman visits her doctor's office complaining of pattern baldness. Her mother and father do not have pattern baldness, but her brother does. The doctor is concerned that she may have the serious condition of _______, and he immediately orders blood tests to check her ________ levels.
A. tumor of the adrenal gland, 5-dihydrotestosterone B. tumor of the reproductive system, testosterone C. skin cancer, 2,5 alpha-reductase D. tumor of the adrenal gland, estradiol E. tumor of the reproductive system, 5-dihydrotestosterone
What is directly responsible for pumping protons out of the matrix in the mitochondria?
a. protein complexes I, II, III, and IV b. cytochrome c and ubiquinone c. protein complexes I and III d. protein complexes I, III, and IV e. NADH and FADH2
In his monohybrid crosses, Mendel deduced that one trait was recessive because that trait was ____
a. not present in the F1 and did not reappear in the F2 b. present in the F1 and in the F2 c. not present in the F1 and reappeared in the F2 d. present only in the parents e. present only in the F2
Deductive reasoning is used to make ________ based on a hypothesis
A) correlations B) data C) predictions D) statistical tests