DUCHENNE MUSCULAR DYSTROPHY IS AN X-LINKED RECESSIVE TRAIT THAT CAUSES PROGRESSIVE MUSCLE WASTING. BEFORE 1970, OVER 85% OF AFFECTED INDIVIDUALS DIED BEFORE THE AGE OF 25. IN THE SPACE BELOW, ANSWER THESE TWO QUESTIONS: • WHY IS IT VERY RARE (8%, LESS THAN EXPECTED FOR AN X-LINKED RECESSIVE TRAIT) TO FIND FEMALES AFFECTED BY THIS DISORDER? • A WOMAN WHOSE BROTHER HAS THIS DISEASE WISHES TO HAVE CHILDREN. ASSUME EVERYONE ELSE IN THIS FAMILY IS UNAFFECTED. WHAT IS THE PROBABILITY THAT SHE WILL PASS THIS TRAIT ON TO A SON? (HINT: WHAT IS THE PROBABILITY SHE IS A CARRIER AND PASSES HER AFFECTED ALLELE?)
DUCHENNE MUSCULAR DYSTROPHY IS AN X-LINKED RECESSIVE TRAIT THAT CAUSES PROGRESSIVE MUSCLE WASTING. BEFORE 1970, OVER 85% OF AFFECTED INDIVIDUALS DIED BEFORE THE AGE OF 25. IN THE SPACE BELOW, ANSWER THESE TWO QUESTIONS: • WHY IS IT VERY RARE (8%, LESS THAN EXPECTED FOR AN X-LINKED RECESSIVE TRAIT) TO FIND FEMALES AFFECTED BY THIS DISORDER? • A WOMAN WHOSE BROTHER HAS THIS DISEASE WISHES TO HAVE CHILDREN. ASSUME EVERYONE ELSE IN THIS FAMILY IS UNAFFECTED. WHAT IS THE PROBABILITY THAT SHE WILL PASS THIS TRAIT ON TO A SON? (HINT: WHAT IS THE PROBABILITY SHE IS A CARRIER AND PASSES HER AFFECTED ALLELE?)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Transcribed Image Text:DUCHENNE MUSCULAR DYSTROPHY IS AN X-LINKED
RECESSIVE TRAIT THAT CAUSES PROGRESSIVE MUSCLE
WASTING. BEFORE 1970, OVER 85% OF AFFECTED
INDIVIDUALS DIED BEFORE THE AGE OF 25. IN THE SPACE
BELOW, ANSWER THESE TWO QUESTIONS:
• WHY IS IT VERY RARE (8%, LESS THAN EXPECTED FOR
AN X-LINKED RECESSIVE TRAIT) TO FIND FEMALES
AFFECTED BY THIS DISORDER?
• A WOMAN WHOSE BROTHER HAS THIS DISEASE
WISHES TO HAVE CHILDREN. ASSUME EVERYONE ELSE
IN THIS FAMILY IS UNAFFECTED. WHAT IS THE
PROBABILITY THAT SHE WILL PASS THIS TRAIT ON TO
A SON? (HINT: WHAT IS THE PROBABILITY SHE IS A
CARRIER AND PASSES HER AFFECTED ALLELE?)
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