I believe that the anwser wouldn be number 3
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.
Answer:
Yes, it does have to have a nervous system.
Explanation:
Answer:
Layer D
Explanation:
Layer D would be the oldest form of undisturbed rock. This would mean that since it is the oldest, it will be <em>least</em> similar to the present day form of that organism.
Answer:
Nucleus
Explanation:
Nucleus controls cells' activities by controlling the synthesis of proteins.
Golgi apparatus involves in the secretion and intracellular transport of a cell.
Ribosome helps the synthesis of proteins only.
Mitochondrion involves in respiration, generating energy for the cell.
