Hemophilia is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Ann and Marie are half-filled circles. Fred and Luke are filled squares. Who has hemophilia in the pedigree that is shown? John and Ann Fred and Luke John, Charles, Jack, and Irene Ann and Marie.

Students were inquired to answer a question at school and to indicate what is most important for them to succeed. Of many answers, the one that that stood out was practice. Successful people usually are not born successful; they become successful with hard work and commitment. This is how you can accomplish your goals. in the following paragraphs some question and answer examples that you can potentially work with to expand your knowledge and gain insight that will guide you to maintain your school studies.

Question:

Hemophilia is an X-linked recessive disorder that is passed through generations and can be traced by using a pedigree. Ann and Marie are half-filled circles. Fred and Luke are filled squares. Who has hemophilia in the pedigree that is shown? John and Ann Fred and Luke John, Charles, Jack, and Irene Ann and Marie.

Answer:

Those with Hemophilia in the pedigree would be Fred and Luke.

For every human pedigree:

  • Affected individuals are completely filled or shaded
  • Carrier individuals are half-filled or half-shaded
  • Unaffected individuals are unshaded or filled

Also:

  • Males are represented by squares
  • Females are represented by circles

Hence, if Fred and Luke are filled squares, it means both are males and are affected for the disorder.

They could potentially hopefully assist the student answer the question by working with the questions and answer examples. You can easily then have a discussion with your classmate and continue the school learning by studying the problem alogside each other.

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