C190.v3 Introduction to Biology module 17
study questions 2025 Western Governors
University
, Module 17 Study Questions
1. Examine the image below. Using this information, explain the difference between an
autosomal trait and a sex-linked trait.
"Human Male Karyotype" by National Institutes of Health, part of the United States
Department of Health and Human Services is in the Public Domain /Modified from Original by
WGU
Autosomal: chromosomes that are not sex determining. 22 chromosomes are autosomal.
Sex chromosomes: last pair of chromosomes that is involved in sex determination.
- Males have XY
- females have XX
2. Albinism is an autosomal recessive disorder. Two individuals who are carriers of
the albinism allele mate with each other. What is the probability of this couple
having a child with the homozygous dominant genotype?
25%
Module 17 Human Inheritance 1
study questions 2025 Western Governors
University
, Module 17 Study Questions
1. Examine the image below. Using this information, explain the difference between an
autosomal trait and a sex-linked trait.
"Human Male Karyotype" by National Institutes of Health, part of the United States
Department of Health and Human Services is in the Public Domain /Modified from Original by
WGU
Autosomal: chromosomes that are not sex determining. 22 chromosomes are autosomal.
Sex chromosomes: last pair of chromosomes that is involved in sex determination.
- Males have XY
- females have XX
2. Albinism is an autosomal recessive disorder. Two individuals who are carriers of
the albinism allele mate with each other. What is the probability of this couple
having a child with the homozygous dominant genotype?
25%
Module 17 Human Inheritance 1
