Oxygen and carbon dioxide are exchanged due to the process of
a. osmosis.
b. facilitated diffusion.
c. diffusion.
d. Brownian movement.
e. active transport.
C
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A. centromeres B. genomes C. sister chromatids D. centrosomes C. sister chromatids
Which of the following has increased as a direct result of stratospheric ozone depletion?
a. CO2 b. UVB c. CFCs d. nitrous oxides e. sulfur oxides
Which of Mendel's laws is represented by the following statement: Alleles of each homologous pair separate independently during gamete formation?
a) Law of segregation b) Law of thermodynamics c) Law of independent assortment d) Law of conservation
The genetic material for a prokaryotic cell is present in a ____, a poorly demarcated region of the cell that lacks a boundary membrane to separate it from the surrounding cytoplasm.
A) nucleoid B) nucleus C) genetome D) chromatic region E) pharmacopeia