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Concept 13.1 Quiz

Questão 1 de 5

2

Asexual reproduction _____.

Selecione uma das seguintes:

  • is limited to plants

  • requires both meiosis and mitosis

  • leads to a loss of genetic material

  • produces offspring genetically identical to the parent

  • is limited to single-cell organisms

Explicação

Questão 2 de 5

2

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?

Selecione uma das seguintes:

  • Clone the plant.

  • Backtrack through her previous experiments to obtain another plant with the same traits.

  • Force the plant to self-pollinate to obtain an identical one.

  • Breed this plant with another plant with much weaker traits.

Explicação

Questão 3 de 5

2

Which of the following defines a genome?

Selecione uma das seguintes:

  • the complete set of a species' polypeptides

  • the complete set of an organism's genes and other DNA sequences

  • a karyotype

  • the complete set of an organism's polypeptides

Explicação

Questão 4 de 5

2

Asexual reproduction occurs during _____.

Selecione uma das seguintes:

  • chromosome exchange between organisms of different species

  • meiosis

  • fertilization

  • mitosis

Explicação

Questão 5 de 5

2

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?

Selecione uma das seguintes:

  • 9

  • 19

  • 10

  • 38

Explicação

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