In the S phase of meiotic interphase, each chromosome replicates, producing two copies of each allele, one on each chromatid, the homologous chromosomes segregation takes place in__

Which of the following statements is correct about the segregation of chromosomes?

a.If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase II and are identical

b. If crossing over has taken place, the two chromatids are no longer identical, and the different alleles segregate in anaphase II

c. If no crossing over has taken place, the two chromatids of each chromosome segregate in anaphase I and are identical

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#Question id: 23853

#Unit 13. Methods in Biology

The segment of DNA shown in Figure, has restriction sites I and II, which create restriction fragments A, B, and C. Which of the gels produced by electrophoresis shown below best represents the separation and identity of these fragments? 

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#Question id: 8970

#Unit 9. Diversity of Life Forms

Acoelomates are characterized by

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#Question id: 10326

#Unit 9. Diversity of Life Forms

Shared derived characters are most likely to be found in taxa that are

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#Question id: 26903

#Unit 10. Ecological Principles

 Our ability to distinguish different biomes under similar conditions in different parts of the world depends primarily on which of the following factors that influence the distributions of growth forms?

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#Question id: 11394

#Unit 9. Diversity of Life Forms

Foods can be preserved in many ways by slowing or preventing bacterial growth. Which of these methods would not generally inhibit bacterial growth?