Eukaryotic flagella differ from prokaryotic flagella because only eukaryotic flagella
A. are long whip-like structures.
B. facilitate phototaxis.
C. facilitate chemotaxis.
D. are used for cell motility.
E. contain microtubules.
Answer: E
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All of the following statements about master
genes are true EXCEPT:a. They orchestrate layers of development. b. They are highly conserved over evolutionary time. c. Mutations within these are frequently devastating. d. They are highly variable in their sequences between species. e. Mutations usually result in changes in body plan
Which boxed area in the generalized karyotype
illustration represents a pair of sex chromosomes? a. A b. B c. C d. both A and B e. none of these
The site of protein synthesis in the cytoplasm is the ribosome
Indicate whether the statement is true or false
The majority of white blood cells in circulation include
A) neutrophils and lymphocytes. B) eosinophils and basophils. C) macrophages. D) erythrocytes.