Which statement about calico cats is false?
A. Calico cats are genetic mosaics.
B. Calico cats can be male or female.
C. The variation in coat color is an example of an epistatic interaction.
D. The different colored fur is due to the inactivation of one X chromosome.
Answer: B
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As elevation increases
a. O2 availability increases. b. O2 availability decreases. c. O2 availability remains constant. d. O2 levels increase, but there is none present above 20,000 feet. e. O2 levels decrease, but there is none present above 20,000 feet.
Endophytes that colonize leaves to feed on the dead tissue are examples of
A. decomposers. B. detritovores. C. producers. D. herbivores. E. carnivores.
Assume that four polygenic gene pairs are involved in determining phenotypes of F2. How many phenotypic classes are expected?
What will be an ideal response?
Antibiotics are often added to biochemical media to restrict the growth to only those organisms that are being looked for in the specimens.
Answer the following statement true (T) or false (F)