1. 1
“Today we are better than we were yesterday and tomorrow even better”
LORD BYRON SCHOOL
Name: ____________________________
Fifth Grade: A B C D
2 015
Central Idea: Our well-being depends on the
decisions we make.
1st
Line of inquiry: Genetic and acquired traits inside a family.
2nd
Line of inquiry: Physical and emotional changes of adolescents.
2. 2
The title of my Unit of Inquiry is: _______________________________________________________
The Central Idea is: ___________________________________________________________
__________________________________________________________________________
The line of Inquiry that will help me explore and research is: __________________________________
From the pictures shown identify the features/ characteristics those people
share.
RELATIONSHIP TRAIT
1. _____________________ __________________________________
2. _____________________ __________________________________
3. _____________________ __________________________________
4. _____________________ __________________________________
5. _____________________ __________________________________
Let’s make some concepts clear. Match the concepts with their definitions. Then, check your
answers with your friends in your team.
1. Trait a. parts of DNA and carry hereditary
information passed from parents to children.
2. Genes b. the
3. DNA c. A distinguished feature of a person, such as eye
color, tongue rolling, and ear lobes attached or
unattached, longer second toe, hitchhiker thumb, etc.
4. Phenotype d. Internal heredity information that contain
genetic code.
3. 3
5. Genotype e. the unique characteristics held by no other person
or thing.
6. Dominant f. Assumptions and convictions that are held to be
true, by an individual or a group.
Your traits are how you look like, things we can observe such as your eye colour, hair colour,
freckles, etc. Your genes contains every single information of you, and your alleles are specific
pieces of information inside your genes.
______________________
_________________ ________________
4. 4
Traits are qualities, features or other things that distinguish the organism. Traits can
include things like hair colour, tooth shape, beak shape, bone size, or muscle structure. A trait is
genetically inherited or passed down from generation to generation. Traits come in two varieties:
inherited and acquired.
Let’s take a close look to these classification. Do not forget to take some notes.
5. 5
Two parents with brown eyes have a child with blue eyes. How is this possible? When studying genetics,
it's important to remember that there are all kinds of variations in the ways genes express themselves.
It’s video time: watch the following video, pay attention to the examples shown, and classify
them in the chart below.
https://www.youtube.com/watch?v=9SdCoNpDzqw
After watching the video, in groups decide a definition for both Dominant and Recessive Traits.
DOMINANT: _______________________________________________________
__________________________________________________________________
RECESSIVE: ________________________________________________________
__________________________________________________________________
To determine the possible genetic combinations of the offspring, the first thing that must be done is to
identify the trait. Once this is done, the trait should be assigned a letter to represent by using a capital
letter for the dominant and a lower case letter for the recessive trait.
H dominant trait
h recessive trait
6. 6
1. One cat carries long-haired traits (Ss), and its mate carries short-haired traits (ss). Use
a Punnett square to determine the probability of one of their offspring having long hair.
A) 100%
B) 25%
C) 75%
D) 50%
2. One dog carries black-haired dominant traits (PP), and its mate carries white-haired
recessive traits (pp). Use a Punnett square to determine the probability of one of their
offspring having white hair.
A) 25%
B) 50%
C) 75%
D) 100%
3. One flower is red (Rr) and it is crossed with a white (rr) plant. Use a Punnett square to
determine the probability of one of their offspring having a red color.
A) 75%
B) 25%
C) 50%
D) 100%
4. In a certain species of plant, the colour purple (PP) is dominant to the colour white (pp).
According to the Punnett Square, what is the probability of an offspring being white?
A) 25%
B) 0%
C) 75%
D) 100%
7. 7
Now it is time to dig inside your own genotypes and phenotypes. Go and look for some traits
that you may share with your parents and/ or other relatives, and list them in the chart below.
http://utahscience.oremjr.alpine.k12.ut.us/sciber01/7th/cells/html/inhvsacq.htm
Relationship Inherited Trait Acquired Trait Dominant
Trait
Recessive Trait
