WorksheetsAP Biology Math Review
Total questions: 8
Worksheet time: 1hrs 11mins
Gregor Mendel was experimenting with peas and exploring the basics of genetics. He knew that green (G) is dominant over yellow (g) peas. In one experiment, he crossed a heterozygous green pea with a homozygous yellow pea. In the F1 generation he obtained a total of 400 peas out of which 180 were green and 220 were yellow.
a. Calculate the chi-square to the nearest tenth.
c. Explain if the null hypothesis can be kept or rejected.
x2 = 4; Null hypothesis can be rejected because chi-square is greater than the critical value of 3.84.
x2 = 4.5; Null hypothesis can be kept because chi-square is less than the critical value of 5.99
x2 = 2; Null hypothesis can be rejected because chi-square is less than the critical value of 5.99
x2 = 4; Null hypothesis can be kept because chi-square is greater than the critical value of 3.84
If the parents of a cross are AaBb x aaBB What is the probability of an offspring that is heterozygous for both genes?
1/2
1/8
1/4
1/16
If a cells Ψp = 3 bars and its Ψs = -4.5 bars, what is the resulting Ψ ?
-7.5 bars
-1.5 bars
7.5 bars
1.5 bars
The value for Ψ in root tissue was found to be -3.3 bars. If you take the root tissue and place it in a 0.1 M solution of sucrose at 20° C in an open beaker, what is the Ψ of the solution, and in which direction would the net flow of water be?
Ψs = -3.3, net flow into the root
Ψs = -2.43, net flow into the root
Ψs = 3.3, net flow out of the root (into the solution)
Ψs = 2.43, net flow out of the root (into the solution)
In a population of 100 individuals, 20 individuals are born and there are 5 deaths. What is the r value?
Recall: r = per capita growth rate of population
.05
.15
.20
.25
A census of birds nesting on a Galapagos Island revealed that 24 of them show a rare recessive condition that affected beak formation. The other 63 birds in this population show no beak defect. If this population is in HW equilibrium, what is the frequency of the dominant allele?
0.47
0.68
0.12
0.36
A lake contains 934 brown trout, 733 smallmouth bass, 34 catfish, and 2003 carp. Find the Simpson's diversity index.
0.50
0.60
0.70
0.80
Cell A is a cube with a side of 7; Cell B is a sphere with a radius of 7. Which one is most efficient?
