Activity 5: Objective: Materials: When Gender Matters Solve problems related to sex-linked traits. activity sheets Procedure: 1. Read the given problem A Color-blindness is a recessive, sex-linked disorder in humans. A color- blind man has a child with a woman who is a carrier of the disorder. KEY X normal vision X color blindness 2. Illustrate using a Punnett square the probability of having children who will have normal vision and children who will be color-blind. Guide Questions: Q 18. What is the genotype of the male? Q 19. What is the genotype of the female? Q 20. What is the chance that the child will be color-blind? Q 21. What is the chance that a daughter will be color-blind? Q 22. What is the chance that a son will be color-blind? Key Concepts • Sex-linked traits are inherited through the X chromosomes. Males have only one X chromosome. Thus, if they inherit the affected X, they will have the disorder Females have two X chromosomes. Therefore, they can inherit/carry the trait without being affected if it acts in a recessive manner Have you seen a bald man? What about a bald woman? It appears that gender matters for the other kinds of traits as well.
Activity 5: Objective: Materials: When Gender Matters Solve problems related to sex-linked traits. activity sheets Procedure: 1. Read the given problem A Color-blindness is a recessive, sex-linked disorder in humans. A color- blind man has a child with a woman who is a carrier of the disorder. KEY X normal vision X color blindness 2. Illustrate using a Punnett square the probability of having children who will have normal vision and children who will be color-blind. Guide Questions: Q 18. What is the genotype of the male? Q 19. What is the genotype of the female? Q 20. What is the chance that the child will be color-blind? Q 21. What is the chance that a daughter will be color-blind? Q 22. What is the chance that a son will be color-blind? Key Concepts • Sex-linked traits are inherited through the X chromosomes. Males have only one X chromosome. Thus, if they inherit the affected X, they will have the disorder Females have two X chromosomes. Therefore, they can inherit/carry the trait without being affected if it acts in a recessive manner Have you seen a bald man? What about a bald woman? It appears that gender matters for the other kinds of traits as well.
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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Question
Transcribed Image Text:Activity 5:
Objective:
Materials:
When Gender Matters
Solve problems related to sex-linked traits.
activity sheets
Procedure:
1. Read the given problem
A Color-blindness is a recessive, sex-linked disorder in humans. A color-
blind man has a child with a woman who is a carrier of the disorder.
KEY X normal vision X color blindness
2. Illustrate using a Punnett square the probability of having children who will
have normal vision and children who will be color-blind.
Guide Questions:
Q 18. What is the genotype of the male?
Q 19. What is the genotype of the female?
Q 20. What is the chance that the child will be color-blind?
Q 21. What is the chance that a daughter will be color-blind?
Q 22. What is the chance that a son will be color-blind?
Key Concepts
•
Sex-linked traits are inherited through the X chromosomes.
Males have only one X chromosome. Thus, if they inherit the affected
X, they will have the disorder
Females have two X chromosomes. Therefore, they can inherit/carry
the trait without being affected if it acts in a recessive manner
Have you seen a bald man? What about a bald woman? It appears that
gender matters for the other kinds of traits as well.
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