Assume That Investigators Crossed a Strain of Flies Carrying the Dominant

question 35

Essay

Assume that investigators crossed a strain of flies carrying the dominant eye mutation Lobe on the second chromosome with a strain homozygous for the second chromosome recessive mutations smooth abdomen and straw body. The F₁ Lobe females were then backcrossed with homozygous smooth abdomen, straw body males, and the following phenotypes were observed:
smooth abdomen, straw body 820
Lobe 780
smooth abdomen, Lobe 42
straw body 58
smooth abdomen 148
Lobe, straw body 152
a) Give the gene order and map units between these three loci.
b) What is the coefficient of coincidence?

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Definitions:

Short-run Aggregate Supply Curve

Illustrates the relationship between the overall price level and the total output of goods and services that firms in an economy are willing to produce, assuming some prices are sticky.

Money Supply Curve

A graphical representation showing the relationship between the quantity of money in the economy and the level of prices.

Inverse Relationship

A situation where two variables move in opposite directions, meaning when one variable increases, the other decreases, and vice versa.

Alban William Phillips

Alban William Phillips was a New Zealand economist best known for the Phillips Curve, which suggests a historical inverse relationship between rates of unemployment and corresponding rates of inflation.