Which one of the following statements about genomic imprinting is FALSE?
A. The DNA changes involved are reversible.
B. It is considered an "epigenetic" change.
C. It can occur in any gene.
D. It takes place during gamete formation or early embryonic development.
E. It affects the expression of a gene, not the gene itself.
C
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Which of the following accounts for why eukaryotic cells are typically much larger than prokaryotic cells?
A. Since eukaryotic cells have more DNA, their cell volume has to be larger. B. A eukaryotic nucleus is so large that the cell has to be bigger. C. Reproducing sexually requires the cells to be larger. D. Using molecular motors, eukaryotic cells can transport materials throughout their cytoplasm much faster than prokaryotic cells can, which have to rely on simple diffusion. E. None of the answers options is correct..
Interspecific hybrids differ from intraspecific hybrids in that
A. interspecific hybrids are common and intraspecific hybrids are rare. B. interspecific hybrids are fertile and intraspecific hybrids are not. C. interspecific hybrids can introduce new genetic material to a population and intraspecific hybrids cannot. D. None of the choices is correct.
What two key adaptations in plants were necessary for insect pollination to be successful?
What will be an ideal response?
Gametes
What will be an ideal response?