2722717
Descripción
Test por Reema Al Biatr, actualizado hace más de 1 año
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Creado por Reema Al Biatr
hace alrededor de 9 años
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Pregunta 1
Pregunta
Asexual reproduction _____.
Respuesta
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is limited to plants
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requires both meiosis and mitosis
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leads to a loss of genetic material
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produces offspring genetically identical to the parent
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is limited to single-cell organisms
Pregunta 2
Pregunta
If a horticulturist breeding gardenias succeeds in having a single plant with a particularly desirable set of traits, which of the following would be her most probable and efficient route to establishing a line of such plants?
Respuesta
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Clone the plant.
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Backtrack through her previous experiments to obtain another plant with the same traits.
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Force the plant to self-pollinate to obtain an identical one.
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Breed this plant with another plant with much weaker traits.
Pregunta 3
Pregunta
Which of the following defines a genome?
Respuesta
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the complete set of a species' polypeptides
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the complete set of an organism's genes and other DNA sequences
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a karyotype
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the complete set of an organism's polypeptides
Pregunta 4
Pregunta
Asexual reproduction occurs during _____.
Respuesta
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chromosome exchange between organisms of different species
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meiosis
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fertilization
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mitosis
Pregunta 5
Pregunta
Quaking aspen can send out underground stems for asexual reproduction. Sexual reproduction is not as common, but when it does happen, the haploid gametes have 19 chromosomes. How many chromosomes are in the cells of the underground stems?
Respuesta
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9
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19
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10
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38
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