Exceptions to Independent Assortment: Sex-Linked and Sex-Limited Traits


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Hemophilia is an X-linked recessive trait. Consider a cross between a woman who is a carrier and a man who suffers from hemophilia. Which of the following statements is/are true?

I. All sons of these parents will be a hemophiliac.

II. Sons who suffer from hemophilia received the hemophilia allele from their mother.

III. Half of the daughters of this cross are predicted to be hemophiliacs.

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Which of the following statements is/are true?

I. A human with an X chromosome and a Y chromosome is male.

II. A human with only one type of sex chromosome (an X chromosome) is female.

III. All children of a color blind woman and a man who is not color blind will carry a color blind allele.

2. A scientist is studying an animal and determines that a gene is located on autosome two. It controls antler production in the male animals. Note that females do not produce antlers. This is an example of a:

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About This Quiz & Worksheet

Some traits are influenced or passed along by sex chromosomes and this quiz/worksheet combo will help you test your understanding of these traits. Some things you'll be assessed on include hemophilia and autosomes.

Quiz & Worksheet Goals

In these assessments you'll be tested on the following:

  • Inheritance of hemophilia
  • Definition of autosome
  • Antler production in male animals

Skills Practiced

  • Reading comprehension - ensure that you draw the most important information from the related biology lesson
  • Knowledge application - use what you've learned to identify true statements regarding chromosomes
  • Information recall - access the information you've gained regarding genetics

Additional Learning

To learn more about traits influenced by X and Y chromosomes, review the accompanying lesson titled Exceptions to Independent Assortment: Sex-Linked and Sex-Limited Traits. This lesson covers the following objectives:

  • Explain how human sex is determined genetically
  • Define sex chromosomes and autosomes
  • Explain what is meant by a 'carrier'
  • Differentiate between sex-limited and sex-linked traits