Use a punnett square to calculate the following:   George is the youngest child in a family that includes 4 children.  All of the children have the recessive phenotype-attached earlobes.  However both parents have unattached earlobes, the dominant trait. Use the letters G, g and answer the following:   What is the genotype of the mother? What is the genotype of the father? What percentage of the offspring would express the recessive trait?

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
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Use a punnett square to calculate the following:  

George is the youngest child in a family that includes 4 children.  All of the children have the recessive phenotype-attached earlobes.  However both parents have unattached earlobes, the dominant trait. Use the letters G, g and answer the following:

 

What is the genotype of the mother?

What is the genotype of the father?

What percentage of the offspring would express the recessive trait?

Expert Solution
Step 1

The DNA is the hereditary unit of an organism. The genes are composed of DNA  which is passed on from one generation to the next. The different form of a gene is known as an allele. the expression of  alleles is responsible for the production of different phenotypic traits in a population.

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