If an individual with a dominant phenotype is crossed with an individual with a recessive phenotype, 4 of their 9 offspring show the recessive phenotype. What is the genotype of the first parent?
A. AA
B. aa
C. Aa
D. The answer cannot be determined from this information.
Answer: C
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Unsaturated fats are considered healthier than saturated fats in the human diet
Indicate whether the statement is true or false.
For six molecules of carbon dioxide fixed in the light-independent reaction, how many molecules of PGA
are produced?
a. 2 b. 4 c. 6 d. 12 e. 18
To date, humans have interfered with all of the biogeochemical cycles on Earth, but this interference has been of the
greatest magnitude, in terms of human-induced changes in climate, in the:a. hydrologic cycle. b. nitrogen cycle. c. carbon cycle. d. sulfur cycle. e. phosphorus cycle.
Which of the following are arranged in the sequence in which the various taxa first appeared in time?
A. prokaryotes, protists, mosses, streptophytes, conifers, ferns, angiosperms B. prokaryotes, protists, streptophytes, mosses, ferns, conifers, angiosperms C. bacteria, streptophytes, protists, mosses, angiosperms, cycads D. protists, prokaryotes, streptophytes, ferns, mosses, angiosperms, conifers E. bacteria, protists, liverworts, lycophytes, streptophytes, angiosperms, gnetophytes