When a single copy of a disease allele doesn't result in a disease but instead is good for the person or organism that carries it, we say that allele has a heterozygote advantage. In other words this occurs when heterozyhotes have increased fitness over both homozygotes. A good example is sickcle cell trait, which protects against malaria in heterozygotes, but causes a deadly disease in homozygotes.
Answer:
Fabienne is using <u><em>mnemonics</em></u> to help her remember the key terms.
Explanation:
A mnemonics can be described as a tool which helps individuals to remember certain facts or data. Mnemonics can arise in the form of songs, rhymes, acronym, phrases etc, anything which will make the learner to easily remember something.
For example, the formulas for sin, cos and tan in mathematics can easily be remembered using the SOH CAH TOA.
Sin is opposite divided by hypotenuse.
Cos is adjacent divided by hypotenuse.
Tan is opposite divided by adjacent.
Answer:
Overpopulate
Explanation
Because they would interact with each other positively.
Answer:
D, E, and F
Explanation:
The requirements for counter current exchange are gills, bulk flow of blood and water and air and the blood pigment. Also, the fluids should flow in close proximity and flow in the opposite directions.
