A Study Was Conducted to Investigate the Levels of Calcium

question 19

Essay

A study was conducted to investigate the levels of calcium and growth hormone excreted in chicken dung on a major chicken farm. The variances (V) were calculated and are shown below. $$\begin{array} { c c | c | } \hline \text { Variance } & \text { Calcium } & \text { Growth hormone } \\\hline V _ { \mathrm { p } } & 321.2 & 95.8 \\\hline V _ { \mathrm { E } } & 119.7 & 69.4 \\\hline V _ { \mathrm { A } } & 107.4 & 10.1 \\\hline V _ { \mathrm { D } } & 94.1 & 16.3 \\\hline\end{array}$$ a. Calculate the narrow-sense heritability for both traits (calcium and growth hormone levels).
b. Which trait, if any, will more likely respond to artificial selection?

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Definitions:

Inflation Rate

The percentage change in the price index from the preceding period

Federal Reserve

The central banking system of the United States, responsible for monetary policy, financial regulation, and stability.

Money Supply Growth

The rate at which the amount of money available in an economy increases over a specific period, influencing inflation and economic activity levels.

Unemployment

Unemployment describes the situation where individuals who are willing and able to work are not currently employed.