A graph of phenotypic variation similar to the accompanying illustration strongly suggests
a. incomplete dominance.
b. codominance.
c. epistasis.
d. polygenic inheritance.
e. environmental effects on phenotype.
ANSWER: d
You might also like to view...
What is one reason that RNA viruses and retroviruses have such a high rate of mutation?
A. because RNA replication is much more prone to mistakes B. because RNA viruses and retroviruses initially cause mutations during replication C. because RNA is more fragile than DNA and therefore more likely to be damaged D. because they lack a proofreading mechanism E. because RNA is more fragile than DNA and because viral polymerases lack a proofreading mechanism.
Which protist would most likely be phytoplankton?
A. Kelp (a brown seaweed) B. Plasmodium falciparum (the pathogen that causes malaria) C. Polysiphonia (a red seaweed) D. Euglena (a unicellular alga) E. Phytophthora infestans (the pathogen that causes late-blight)
DDT was used in the U.S. in the ____ industry
a. plastics b. agricultural c. paint d. manufacturing e. weapons.
Beadle and Tatum began their studies with wild-type Neurospora, which is:
a. Neurospora that only grows in the wild. b. a mutant strain that will only grow in the lab on complete medium. c. a strain that will not grow in the lab. d. a virulent strain of Neurospora. e. a normal phenotype that will grow on minimal medium.