The probability that the child will not inherit Huntington’s disease is therefore 1/4.
<h3>What is Probability?</h3>
This is defined as a numerical description of how an event is likely to occur and the formula is :
Number of favourable outcomes/Total Number of outcomes.
When the heterozygous traits(Hh × Hh) are crossed, we have HH, Hh, Hh, hh.
The recessive trait is hh which makes the probability to be 1/4 in which the resulting child will not inherit the disease.
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Answer:
B. Continental glaciers can flow in all directions.
Explanation:
Continental glaciers flow outward in all directions from a central point.
deforestation- making room for new buildings by clearing trees and forests
pollution- from factories, litter, and bad hygiene
Using the principle of faunal succession, if an unidentified fossil is found in the same rock layer as an index fossil, the two species must have existed during the same period of time (Figure 4). If the same index fossil is found in different areas, the strata in each area were likely deposited at the same time.