Between 2000 and 2013, fatalities from measles decreased by approximately 75%.
<h3>What do you mean by Measles?</h3>
Measles may be defined as an acute and highly contagious viral disease that is commonly caused by a single-stranded RNA virus known as measles virus.
Fatalities caused by measles in 2000 = 582,800
Fatalities caused by measles in 2013 = 145,700
Total differnce = 437100.
Now, the percentage = 437100/582800 ×100 = 75%.
Therefore, between 2000 and 2013, fatalities from measles decreased by approximately 75%.
To learn more about Measles, refer to the link:
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Answer:
C. "Because you have had one child with Tay-Sachs, you must each carry the allele. Any child you have has a 25% chance of having the disease
Explanation:
Tay-Sachs disease is an autosomal recessive disorder that means a child will acquire the phenotype or we can say disease only when both the alleles which cause disease are present in the child.
Here, in this condition neither parent has Tay-Sachs but they gave birth to a child who is suffering from the disease then it simply means that both the parents are carrier of this disease i.e. they both are heterozygous.
The cross and probability of healthy and diseased child is shown as under:
Mother Father
Parents Tt Tt
/ | | \
Off-springs TT Tt Tt tt
<u>Out of these 4 probable off-springs only 3 with genotype TT, Tt & Tt will be healthy while the 1 with genotype tt will be diseased.</u><u> </u><u>So, the probability of diseased child is 1/4 which is 25%. </u>
Also, the birth of children is an independent event so if one child has already been born with this disease then it doesn't mean that the next 3 children will be healthy for sure i.e. birth of first child cannot influence the next child. In short we can also say that in the next birth, there is still 25% chance of the child being born with this disease because previous birth has nothing to do with next birth.
D. Focusing
Sound waves reflected in flat surfaces like walls, floors and ceilings results to uneven dispersion of sounds by creating locations with high intensity and another with low intensity. This process is called Focusing and can be undesirable in auditoriums.
Answer:
<em>yellow to red is an acidic solution
</em>
<em>blue to violet is bases
</em>
<em>green color is a solution is neutral</em>
Explanation: