Answer: One parent is IAi and the other parent is IBi
Explanation: As this trait is codominant, the child can inherited IA, IB or i.
Tina has type O, which means she is ii and her sister is AB, so her genotype is IAIB. Now, to have a child with a recessive trait both parents has to carry at least one allele for the recessive, i. Rosa is type AB which means she had to have inherited one allele IA from one of her parents and the other IB from the other parent. Thus, one parent is IAi and the other is IBi.
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Answer:</h2>
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Consider two bodies A & B which collide with each other. If 
be the force exerted by the body A on Body B. Then Body B will also exert force 
on Body A which is equal in magnitude but opposite in direction.
The force exerted by Body A on Body B is called Action, and the force exerted by the Body B on Body A is called Reaction.
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If you go to book and search you will find your answer
Answer:
White Blood Cells Defend the Body Against Disease
Neutrophils are phagocytes, cells that consume invading pathogens. Lymphocytes, the second most common type of white blood cell, disseminate through the organs and tissues of the lymphatic system. Lymphocytes target specific pathogens as part of the immune response.
Explanation:
