Cell Division A
Cell Division B
Cell Division C
100

________ are useful for identifying abnormal chromosomal numbers.

Karyograms

100

A nondisjunction event in ________ causes all gametes to be mutant.

meiosis I

100

In order for cancer to develop, a ________ would need to be inactivated.

tumor suppressor gene

200

The initiation signal for triggering cell division is ________.

an external event

200

Paired chromosomes inside the nucleus of cell indicate the organism is ________

diploid

200

Identify the mechanism that ensure offspring are genetically different from parents and siblings.

Response

  • Nonrandom division of the maternal and paternal genomes
  • Trait selection at fertilization
  • Crossing over within a homologous pair during meiosis
  • Crossing over within a homologous pair during meiosis
300

Meiosis is divided into ________ round(s) of division.

2

300

Genetic variation from meiosis is generated during ________.

both meiosis I and meiosis II

300

At which stage of meiosis are sister chromatids separated from each other?


  • anaphase I
  • anaphase II
  • telophase II

anaphase II

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