________ occurs when 50% of a protein produces a different phenotype than that produced by 100% or 0% of the protein.
A. Recessive inheritance
B. Codominance
C. Hybridization
D. Loss of function mutation
E. Incomplete dominance
Answer: E
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Which of the following statements regarding fern alternation of generations is not correct?
A. Ferns have a dominant, diploid sporophyte. B. The fern gametophyte is very small, but very hardy. C. Most fern gametophytes are capable of producing both male and female gametes. D. Chemical signals released by gametophytes producing eggs cause other, nearby gametophytes to also produce eggs. E. The diploid zygote will grow to become the sporophyte.
Thalassemias are associated with a(n) ____
a. amino acid substitution b. extended chain in beta globin c. imbalance in the production of alpha or beta globin d. excessive synthesis of beta globin e. altered rate of oxygen transport
Weak attractions between adjacent water molecules are
A) ionic bonds B) van der waals forces C) hydrophobic interactions D) polar covalent bonds E) hydrogen bonds
In spring, red-winged blackbird males return to their summer grounds where they compete for
territories prior to the arrival of females. This is an example of __________.
a. resource partitioning b. intraspecific competition c. niche overlap d. dominance hierarchy