The answer is D) <span>Calculate the probability of a child having either sickle-cell anemia or cystic fibrosis if parents are each heterozygous for both.
The addition rule is used to calculate the probability of one of the events from multiple pathways. If you want that only one of the events happens, you will use the addition rule. In a case when you want to calculate the possibility of a child having EITHER sickle-cell anemia OR cystic fibrosis, you will use THE ADDITION RULE.
For example, in statement B) you will not use this rule because there is no either/or, but both/and. In case, B) you would use the multiplication rule.</span>
Answer:
The slc7a9 (Solute Carrier Family 7 Member 9) gene encodes for a protein that plays a critical role in the transport of cysteine in the kidneys, thereby a mutation in this gene may lead to health problems related to the urinary system. On the other hand, the SLC3A1 gene encodes a protein subunit which is required to form a transporter complex that is not involved in the transport of cysteine.
Convection currents are identified in Earth's mantle. Heated mantle material is shown rising from deep inside the mantle, while cooler mantle material sinks, creating a convection current.
Answer:
A cursorial organism is one that is adapted specifically to run. There are different ways of distinguishing cursorial organisms; for example, they can be distinguished by feeding habits so that a horse is a cursorial grazer and a wolf a cursorial predator.
Explanation:
