Mendel crossed pea plants dominant for two different traits (tall and green pods) with pea plants recessive for those same two traits (short and yellow pods). This cross resulted in pea plants that had combinations of all four traits (tall with green pods, tall with yellow pods, short with green pods, and short with yellow pods). Which law of inheritance best describes why this happens?
A. the law of segregation
B. the second law of thermodynamics
C. the law of independent assortment
D. the law of pedigrees
Answer: C
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The Schwann cell's counterpart in the central nervous system is the
a. microglial cell. b. astrocytes. c. ependymal cells. d. oligodendrocytes. e. satellite cells.
The primary structure of a protein
A) is important for determining the secondary and tertiary structure of a protein. B) is simply the order of amino acids from one end of the protein to another. C) is important both genetically and structurally. D) is the linear sequence of amino acids that are linked together by peptide bonds. E) All of these statements are true.
All animals disperse actively, whereas all plants disperse passively
Indicate whether the statement is true or false
Analysis of genomes of modern species indicates that the first cells were similar to existing ____.
A. viruses B. fungi C. prokaryotes D. eukaryotes E. algae