What is the key to the recognition of codominance?
A) The phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes.
B) The trait exhibits a continuous distribution.
C) The alleles affect more than one trait.
D) The heterozygote expresses the phenotype of both homozygotes.
D
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Do only plants have vacuoles?
A. Yes, only plants cells have vacuoles. B. No, bacteria also contain vacuoles that serve the same function C. No, other organisms, such as certain types of fungi and protists, have vacuoles that serve different functions. D. No, other organisms, such as certain types of fungi and protists, have vacuoles that serve the same function as in plant cells.
Which of the following belong to the Chelicerata subphyla?
a. scorpions and horseshoe crabs b. barnacles and lobsters c. millipedes and centipedes d. crayfish and isopods
Competition among individuals of the same species is ________ competition
A) density-independent B) intraspecific C) Type II D) Type III
The double helix model of DNA structure was proposed by
A. Chargaff. B. Griffith. C. Franklin. D. Watson and Crick. E. Avery.