The most diagnostic (i.e. unique) shared derived trait for animals is the presence of
A. sexual reproduction
B. multicellularity
C. a blastula
D. active movement
Ans: C. a blastula
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Which of the following best explains both the growth of a vine up the trunk of a tree as well as the directional growth of a houseplant toward a window?
A) nastic movement B) taxic movement C) tropism responses D) morphological responses E) acclimation
What is the function of a protein kinase?
A. To remove phosphate groups from proteins B. To cleave membrane phospholipids C. To phosphorylate GDP to generate GTP D. To add phosphate groups onto proteins
The most common phenotype or allele for a gene in a population is referred to as the
A. F1 generation. B. P generation. C. wild-type. D. dominant population. E. recessive population.
In fruit flies, which of the characteristics you studied was X-linked? ____________________
Fill in the blank(s) with the appropriate word(s).