Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 34.4, Problem 1CC
Summary Introduction
To analyze:
The reason behind red-green color blind not common in females.
Introduction:
Red-green colorblindness is a disorder which is sex linked inheritance. The genes of the green and red color receptor are located on the X-chromosome. It is also termed as color vision deficiency in this disorder the person have a very low efficiency in differing between colors.
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Chapter 34 Solutions
Principles of Biology
Ch. 34.1 - Prob. 1BCCh. 34.1 - Prob. 1TYKCh. 34.2 - Prob. 1BCCh. 34.2 - Prob. 2BCCh. 34.2 - Prob. 1CCCh. 34.2 - Prob. 1TYKCh. 34.2 - Prob. 2TYKCh. 34.3 - Prob. 1CCCh. 34.3 - Prob. 1TYKCh. 34.4 - Prob. 1CC
Ch. 34.4 - Prob. 2CCCh. 34.4 - Prob. 1TYKCh. 34.4 - Prob. 2TYKCh. 34.5 - Prob. 1CCCh. 34.5 - Prob. 1TYKCh. 34.5 - Prob. 2TYKCh. 34.6 - Prob. 1TYKCh. 34.6 - Prob. 2TYKCh. 34 - Prob. 1TYCh. 34 - Prob. 2TYCh. 34 - The sensory receptors for audition (hearing) are...Ch. 34 - In an experiment to test the function of...Ch. 34 - Prob. 5TYCh. 34 - Prob. 6TYCh. 34 - Prob. 7TYCh. 34 - Prob. 8TYCh. 34 - Which is true? A loss of taste buds would reduce a...Ch. 34 - Prob. 10TYCh. 34 - Prob. 1CCQCh. 34 - Prob. 2CCQCh. 34 - Prob. 3CCQCh. 34 - Prob. 1CBQCh. 34 - Prob. 2CBQ
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- Two normal visioned parents have a color-blind son. What are the genotypes of the parents?arrow_forwardWhy is the color blindness gene still common in today's population?arrow_forwardA young boy is colorblind. His one brother and five sisters arenot. The boy has three maternal uncles and four maternal aunts.None of his uncles's children or grandchildren are colorblind. Oneof the maternal aunts married a colorblind man, and half of herchildren, both male and female, are colorblind. The other auntsmarried men who have normal color vision. All their daughters havenormal color vision, but half of their sons are colorblind.1. Which of the boy's four grandparents transmittied the gene forcolorblindness?2. Are any of the boy's aunts and uncles colorblind?3. Are either of the boy's parent colorblind?arrow_forward
- Why is inheritance of eye color more complex than just having either blue or brown eyes?arrow_forwardSome women who have had male children who display color blindness have been demonstrated to distinguish between colors that are not readily distinguished by other people. Propose an explanaarrow_forwarda) A man with red-green colour blindness is married to a girl with normal colour vision. What is the probability that his children will be colour blind? b) A boy has Duchenne muscular dystrophy. His maternal uncle had died of muscular dystrophy at the age of 21 years. What is the probability that this child's sibs will be affected?arrow_forward
- Are all forms of Down syndrome due to non-disjunction?YES or NO?arrow_forwardRed–green color blindness is caused by an X-linked recessive genetic defect. Hence females rarely exhibit the red–green colorblind phenotype but may be carriers of the defective gene. When a narrow beam of red or green light is projected onto some areas of the retina of such a female carrier, she can readily diff erentiate the two colors, but on other areas she has diffi culty in doing so. Explain.arrow_forwardIf a woman homozygous for color blindness has children with a man having normal vision, what would be the potential genotypes and phenotypes of her offspring?arrow_forward
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