In humans, X-linked traits:
a) occur on the X-chromosome.
b) are passed from fathers to their sons.
c) tend to skip generations.
d) occur more frequently in females.
e) All of the above are true.
Ans: a) occur on the X-chromosome.
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Compare and contrast the human pathogens and non-pathogens in Clostridium. Propose a reason for why this differentiation is challenging to assay in the laboratory (NOT on living eukaryotic animal models)
What will be an ideal response?
The photosynthetic activity of cyanobacteria takes place in their:
A. thylakoids B. mitochondria C. pili D. gas vesicles E. magnetosomes
Which statement best describes the composition of cell walls found in water molds?
a. All individuals have only walls made of cellulose. b. All individuals have only walls made of chitin. c. All individuals have only peptidoglycan walls. d. Some individuals have cell walls of chitin, and others have cell walls of cellulose. e. Some individuals have cell walls of chitin, some have cell walls of cellulose, and some have cell walls of both chitin and cellulose.
Unlike a single-celled organism, the cells of a multicellular organism can
A. migrate or move to new locations. B. replicate their genomes. C. grow larger by taking up nutrients. D. divide into new cells. E. differentiate into specialized cells.