Parts of a Chromosome & Their Roles Video


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question 1 of 3

If a human has forty-six chromosomes, what is the maximum number of chromatids that could be found in a cell in a normal human body?

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1. What is the maximum number of sister chromatids that can exist during mitosis for any given chromosome?


Loss of one of the telomeres of a chromosome could result in which of the following?

I. Chromosome shortening

II. Loss of genomic information

III. An increase in chromosome number

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About This Quiz & Worksheet

Chromosomes have many different physical features. This worksheet/quiz combination will give you an opportunity test your understanding of these features. You will need to be familiar with the information about chromatids as well as the definition of a chromosome.

Quiz & Worksheet Goals

These assessments will test the following:

  • Functions of the centromere
  • Normal number of chromatids in the human body
  • Maximum number of chromatids for chromosome 2
  • Telomere loss

Skills Practiced

Students will practice the following skills:

  • Information recall - access the knowledge you've gained regarding the parts of a chromosome
  • Knowledge application - use your knowledge to answer questions about chromatids
  • Reading comprehension - ensure that you draw the most important information from the physical features of a chromosome lesson

Additional Learning

To learn more about chromosomes, review the accompanying lesson, Physical Features of a Chromosomes. The objectives covered will include:

  • Understand copies of chromosomes
  • Define chromatids and sister chromatids
  • Understand DNA replication
  • Know the three basic parts of the chromosome