How does water and other molecules move across the membrane and in various solutions to maintain homeostasis

1 answer:

3 0

Osmosis of Water Across the Membrane. Osmosis is the tendency for water molecules to move from where there is a higher concentration to where there is a lower one. ... The cell membrane helps to regulate and slow down the flow of water into the cell. This is yet another way that the cell membrane helps maintain homeostasis

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In Achondroplasia the following genotypes and phenotypes are observed.

Alik [6]

Answer:

1/4 or 25%

Explanation:

The chance that their children would have severe (;ethal) achondroplasia would be 25% or 1/4.

From the illustration:

AA genotype is physically lethal,

Aa genotype conditions achondroplasia, and

aa genotype conditions normal height.

Now, a male whith achondroplasia (Aa) had children with a female with achondroplasia (Aa):

Aa x Aa

Progeny = AA, 2Aa, aa

Out of the 4 children produced from the cross, one of them has AA genotype which represents severe (lethal) conditions. Thus, the chance that their children would have severe (lethal) achondroplasia is 1 out of 4 or 25%.

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