A.
Let x = age of Samantha.
Then x - 2 = age of Emily,
and x + 2 = age of Lauren.
b.
x - 2 + x + x + 2 = 42
c.
x - 2 + x + x + 2 = 42
3x = 42
x = 14
x - 2 = 14 - 2 = 12
x + 2 = 14 + 2 = 16
The ages of the sisters are 12, 14, 16.
Based on this information, William's blood type could be either B or O.
What is Segregation of alleles?
- Allele pairs (several features of the same gene) are segregated during meiosis so that they can be transferred selectively to different gametes.
- During meiosis, maternal and paternal alleles separate.
What is genotype vs phenotype ?
- Genotype: An organism's genetic makeup.
- Phenotype. physical characteristic that arises within an organism as a result of its genotype. Probability law.
- Genotype - the set of alleles that make up an organism.
How does genotype influence phenotype ?
- The alleles you have for a specific gene or collection of genes are referred to as your genotype.
- The physical attribute itself, or phenotype, can be affected by both genotype and environmental variables.
Learn more about Genotype
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Answer:
The data item is 
Step-by-step explanation:
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean 
and standard deviation 
, the z-score of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.
Mean of 400 and a standard deviation of 60.
This means that 
z=3
We have to find X when Z = 3. So
The data item is
2021 is the answer ........
