Humans have 23 pairs of chromosomes, and chimps have 24 pairs of chromosomes. What is the most likely explanation for these differences in human and chimp genomes?

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#Question id: 2969

#Unit 2. Cellular Organization

In the cells of many eukaryotic species, the nuclear envelope has to disappear to permit which of the following events in the cell cycle?

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#Question id: 12837

#Unit 2. Cellular Organization

Haploid yeast cells were grown in culture and stained with propidium iodide, a fluorescent dye that is incorporated into DNA. The x axis shows DNA content, the y axis the number of cells. The DNA content analysis shows different populations of cells.

Which of the following statement is correct regarding to above graph?

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#Question id: 12836

#Unit 2. Cellular Organization

The final layer of control that is critical in the regulation of CDKs is a family of proteins known as CDK inhibitors, or CKIs, which bind directly to the cyclin-CDK complex and inhibit its activity. Which of the following function not done by CKIs?

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#Question id: 12835

#Unit 2. Cellular Organization

Following statements are regarding to the surveillance mechanism. Which of the following statement is incorrect?

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#Question id: 12834

#Unit 2. Cellular Organization

How Aurora B and the spindle assembly checkpoint pathway collaborate during every cell cycle to accurately attach every single pair of sister chromatids to the mitotic spindle in the correct, bioriented manner?

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#Question id: 12486

#Unit 2. Cellular Organization

Which of the following process occur in prometaphase?