Timed Free-Response Essay Options Mendelian Genetics
Name:__________
Date:__________
Period:____
Directions:



Read each of the questions.
Develop a basic rubric for each of the questions.
Develop an outline for each question.
1.) State the conclusions reached by Mendel in his work on the inheritance of characteristics. Explain how
each of the following deviates from these conclusions.
a.
b.
c.
Autosomal linkage.
Sex-linked (X-linked) inheritance.
Polygenic (multiple-gene) inheritance.
2.). Discuss Mendel’s laws of segregation and independent assortment. Explain how the events of meiosis
I account for the observations that led Mendel to formulate these laws.
3.). An organism is heterozygous at two genetic loci on different chromosomes.
a.
b.
c.
Explain how these alleles are transmitted by the process of mitosis to daughter cells.
Explain how these alleles are distributed by the process of meiosis to gametes.
Explain how the behavior of these two pairs of homologous chromosomes during meiosis
provides the physical basis for Mendel’s two laws of inheritance.
General Rubric
Criteria A
Supporting
(2pts)
Details A (1pt)
Supporting
Details A (1pt)
Supporting
Details A (1pt)
Total
Criteria B
(2pts)
Supporting
Details B (1pt)
Supporting
Details B (1pt)
Total
Supporting
Details B (1pt)