Why is the production of transgenic plants somewhat easier than the production of transgenic animals?
A. Plant cells lack cell walls, so uptake of DNA is easier than in animal cells.
B. Plant cells are more stable than animal cells.
C. Plant cells are totipotent.
D. Plant cells are more highly evolved as they contain both chloroplasts and mitochondria.
E. All of the above are reasons why plant cells are more easily transformed than animal cells.
C. Plant cells are totipotent.
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In which soil would the banana tree receive the most appropriate amount of water for its
needs?
a. soil A b. soil B c. soil C d. It would receive the appropriate amount of water from all the soil types.
Body parts that are similar but have evolved in different lineages due to environmental pressures are called ________
a. morphological convergences b. homologous structures c. analogous structures d. vestigial structures e. morphological divergences
If a corn plant has a genotype Sstt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?
A.) Ss, tt, St, st B.) Ss, tt, St, ST C.) St, st D.) St, sT, st
Uses of chlorofluorocarbons (CFCs) include all
EXCEPT which of the following? a. gasoline additives b. aerosol propellants c. refrigeration coolants d. manufacture of plastic foam e. components of solvents