Which of the following features was not necessary for adaptation by reptiles for life on land
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Answer:
The given pedigree analysis shows sex-linked trait where the female work as a carrier and have X linked recessive gene that is and the male is normal.
So, Fred will be a male with gene and Fred will be affected with X linked disease which is carried by female.
If, gene in the female (Ann) act as a carrier of hemophilia and the male (John) is normal, then Fred will be a male affected with hemophilia (sex linked disease).
Hence, Fred will be affected male with genotype.
