Which type of cell could not be used for karyotyping?
A) Red blood cell
B) White blood cell
C) Fibroblast
D) Skin cell
A) Red blood cell
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Evolution at the genomic level involves changes in
A. chromosome structure and number. B. sequences of amino acids in proteins. C. sequences of nucleotides in RNA molecules. D. incorporation of new organelles such as the mitochondrion. E. DNA and histone relationships.
Four of the five answers listed below are features of the pericycle. Select the exception
a. can continue to differentiate b. origins of lateral roots c. found in the root, but not in the stem d. site for food storage e. located inside the endodermis
What actually happens when pyruvic acid loses a carbon dioxide molecule after glycolysis?
A) The pyruvic acid is denatured. B) The pyruvic acid is phosphorylated. C) The pyruvic acid is decarboxylated. D) The pyruvic acid is oxidated.
Carbon-14 has the same:
A) number of protons but more neutrons than carbon-12. B) atomic number and atomic mass as carbon-12. C) atomic number and, therefore, the same number of neutrons as carbon-13. D) atomic mass as both carbon-12 and carbon-13. E) atomic mass and, therefore, the same number of neutrons as carbon-12.