Download MYP Assessment Task Coversheet Teacher/Profesor Trevor Lafferty

Teacher/Profesor
Trevor Lafferty
MYP Assessment Task Coversheet
SUBJECT
Biology
STUDENT
Grade
Date/Fecha
10
April 2013
Assessment Task/ La actividad de evaluación
MONOHYBRID CROSS DATA ANALYSIS: Students are to process the given data using THE APPROPRIATE
FORMAT to determine the relevant genotypes and phenotypes for each question. You MUST show your
working of each question.
Criterion and Assessment Rubrics
Criterion E: Processing Data
This criterion measures how well you record data in written form, graphs and tables. It measures how well you recognize patterns, similarities and
differences in the results of your experiments. It also measures how well you write or speak about these results.
Level
Descriptor
0
1-2
● The student does not reach a standard described by any of the descriptors in criterion E.
● The student organizes and presents data using simple diagrammatic forms but this is
inconsistent. Elements are missing in the steps used for more than one of the answers.
● The answers are incorrect.
● The student organizes and transforms data into diagrammatic forms and presents it
using the appropriate steps. The procedures used are correct but the final ratios given
have some errors or omissions.
● The student draws a conclusion consistent with the data.
● The student organizes and transforms data into appropriate diagrammatic forms and
presents it logically and clearly, using appropriate steps and communication modes.
● The student draws a clear conclusion based on the correct interpretation of the data.
3-4
5-6
Self
Assessment
Teacher
Assessment
Student Reflection:
Teacher Feedback/ Retroalimentación del profesor:
IE-EA-FT-80
Versión 1
Edición Sep 2010
DATA ANALYSIS ACTIVITY:
Monohybrid Cross Problems 1
For each of the following complete a Punnett square and answer the question using your own paper.
1. In humans brown eyes are dominant over blue eyes. What type of offspring would you expect if you crossed a
heterozygous brown eyed person to a heterozygous brown eyed person?
2. In humans premature gray hair is dominant over normal hair coloring. Cross a homozygous premature gray haired
person to a homozygous normal haired person.
3. In humans tongue rolling is dominant to non-tongue rolling. What would be the expected type of offspring if a
homozygous tongue roller was crossed to a heterozygous tongue roller?
4. Brown hair is dominant over light colored hair. Cross two light haired people.
5. In garden peas, round peas are dominant to wrinkled peas. If you crossed a homozygous dominant and homozygous
recessive what would be the genotype and phenotype of the offspring?
Monohybrid Cross Problems 2
For each of the following complete a Punnett square and answer the question using your own paper.
6A. In pea plants purple flowers are dominant to white flowers. What parental genotypes would produce offspring that
are all heterozygous for the purple trait?
6B. A white flowered plant is crossed with a plant that is heterozygous for the trait. What percentage of the offspring
will have purple flowers?
6C. If out of 100 offspring 74 are purple flowered and 26 are white, what were the probable genotypes AND phenotypes
of the parents?
6D. What are the parental genotypes needed to produce 100% white flowers?
Monohybrid Cross Problems 3
For each of the following complete a Punnett square and answer the question using your own paper.
7. A tall plant of unknown genotype is test-crossed (meaning it is crossed with a recessive tt plant). Of the offspring, 869
are dwarf and 912 are tall. What is the genotype of the unknown parent, is it TT or Tt? Show the cross to prove it.
8. In humans, tongue rolling is a dominant trait, those with the recessive condition cannot roll their tongues. Bob can roll
his tongue, but his mother could not. He is married to Sally, who cannot roll her tongue. What is the probability that
their first born child will not be able to roll his tongue?
IE-EA-FT-80
Versión 1
Edición Sep 2010