Tay-Sachs disease is a recessive genetic disorder. If only one gene is present, an individual is a carrier. What is the probability of two healthy Tay-Sachs carriers having a child that has the disease?

The probability of two healthy Tay-Sachs carriers having a child that has the disease will be %

Explanation:

It is given that Tay Sachs is a recessive disorder which means the genotype must both recessive allele.

Let the dominant normal allele be T and the recessive diseased allele be t

Genotype of a healthy Tay-Sachs carriers will be Tt

Tt * Tt

TT, Tt, Tt, tt

Only child with genotype tt will have Tay-Sachs disease

Hence the probability of two healthy Tay-Sachs carriers having a child that has the disease will be %

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.