Compute a chi-square test statistic

Assignment Help Biology

Reference no: EM13178140

There are two different genes in cantaloupe that affect fruit shape (Gene S) and fruit color (Gene C). The dominant wild-type fruit color in cantaloupe is orange, and is coded for by the allele "s+". A mutant recessive color-allele "s" causes the fruit to be purple in a homozygous state. Wild-type cantaloupes are oblong and have at least one dominant allele "c+", while cantaloupes having two copies of the recessive mutant allele "c" are cube-shaped (it's true... look it up... perfectly cube-shaped). Consider the testcross s+s c+c X sscc. Such a cross produces the following progeny:

Fruit Color Fruit Shape Observed
progeny
Orange Cube 423
Orange Oblong 67
Purple Cube 72
Purple Oblong 438
Total:

How many purple, cube progeny would be expected if the two genes were unlinked?
a. 0
b. 250
c. 333
d. 500
e. none of the above.

Are the two genes linked to one another? In order to ask this question, one would calculate a chi-square test statistic to see whether or not the observed progeny phenotypes are significantly different from the expected progeny phenotypes. The chi-square test statistic calculated from the above observed:expected progeny arrays is (to the nearest whole number):

198
347
430
522
none of the above

From the chi-square test statistic, you can use your provided table of chi-square critical values to determine a p-value. Is the p-value less than 0.05, and if so, what does that mean?

yes, the genes are linked to one another.
yes, the genes are unlinked.
no, the genes are not linked to one another.
no, the genes are unlinked.
none of the above.

Reference no: EM13178140

Questions Cloud

Calculate the companies predetermined overhead application : Calculate the companies predetermined overhead application rate and calculate the additions to the work-in-process inventory account for the direct material used, direct labor and manufacturing overhead.

State a solute that is effectively filtered : Suppose a chicken is injected with inulin, a solute that is effectively filtered, but is neither secreted nor absorbed. After some time, the inulin concentration measured in the blood is found to be 5mM,

Develop a general rule for the set of c values : There is a difficult question on my assignment regarding the Mandelbrot set. It asks for me to develop a general rule for the set of c values that will be part of the set.

Find the y-coordinate of the point : Find the y-coordinate of the point (3+h, ) if this point lies on the graph of the function F(x) = (3/x) - x the y-coordinate of the point is.

Compute a chi-square test statistic : calculate a chi-square test statistic to see whether or not the observed progeny phenotypes are significantly different from the expected progeny phenotypes

Entirely insensitive to the energies : Because the brain is entirely insensitive to the energies in the external world in their raw forms, all sensory systems must have______.

How low could chavez bid for the charity event : Estimate the contribution to profit of a standard 180-guest cocktail party if Chavez charges her usual price of $31 per guest. (In other words, by how much would her overall profit increase?)

Frederick griffith accidentally discovered transformation : Frederick Griffith accidentally discovered transformation when attempting to develop a vaccine for pneumonia. He injected mice with samples from S-strain (virulent) and/or R-strain (non-virulent) pneumococci bacteria (Streptococcus pneumonia)

Trend toward greater and greater cultural diversification : We are seeing a reversal of one of the major trends covering nearly all of human history - the reversal of the trend toward greater and greater cultural diversification.

User Account

All Pages