Which of the following is a true statement about asexual reproduction in plants?
A) Clones of plants do not occur naturally.
B) Cloning, although achieved in animals, has not been demonstrated in plants.
C) Making cuttings of ornamental plants is a form of fragmentation.
D) Reproduction of plants by cloning may be either sexual or asexual.
E) Viable seeds can result from asexual reproduction only.
Answer: C
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Which of the following acts as a quality control center for cells?
A) Lysosome B) Plasma membrane C) Endoplasmic reticulum D) Nuclear lamina
Which of the following is not a major class of growth factors?
A. Nucleic acids B. Amino acids C. Purines and pyrimidines D. Vitamins
Which mutations can interfere with the proper insertion of a protein in the plasma membrane?
A. A nonpolar amino acid to a polar amino acid within a cytoplasmic domain B. A polar amino acid to a nonpolar amino acid within a transmembrane domain C. A polar amino acid to a nonpolar amino acid within a cytoplasmic domain D. A nonpolar amino acid to a polar amino acid within a transmembrane domain
Describe telophase (Select all that apply)
a. sister chromatids cluster on each side of the cell b. chromosomes align along the center of the cell c. DNA is replicated d. centrioles migrate to the poles of cell e. a nuclear envelope reappears