Typically, ____ does not promote dormancy in perennial plants
a. dry soil
b. nitrogen deficiency
c. long nights
d. cold nights
e. warm nights
ANSWER: e
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Which of the following signals is not a signal that may cause a change in gene expression in complex multicellular organisms?
A. oxygen levels B. nutrients in the environment C. temperature D. hormones E. All of these influence gene expression in complex multicellular organisms.
What technical advance allowed Walther Flemming and other scientists of his generation to better understand the stages of mitosis and meiosis?
A. the ability to obtain single cells B. the ability to slice cells thinly C. microscopes with two eyepieces D. microscopes with high-quality oil immersion lens E. electron microscopes
Which traits would pedigree analysis be least effective in tracking?
1.X-linked dominant disorders
2.autosomal recessive disorders
3.sex-limited genes
4.multifactorial traits
What is the growth and reproduction of an individual called?
A) life cycle B) genotype C) phenotype D) normal distribution