U2M1L1: Inheritance

Learning
Objectives:

• Describe what a

trait is.

• Predict what

offspring would
look like using
a Punnett square.

Lesson 1:
Inheritance

5.Collect data: compare
your pattern with other
students
6.Compare How many
students have the same
pattern as yours for each
fingerprint

7.Construct a graph of the
class results (using the
data on the classroom
board)

1.Take a screenshot of each
fingerprint on all five
fingers.
2.Retrieve information
about Fingerprints
3.Identify your pattern for
each fingerprint using the
link
4. record your results on
the classroom board

Practical
activity:
Fingerprints

​Classkick:

fingerprints inquiry-based activity

Assess
Prior Knowledge:

Draw

Correct Answer:

Starter: Why
do some
offspring look
like
their parents
while others
don't?

Class survey activity

Poll

• Earlobe: unattached

• Earlobe: attached

• thumb: curved

• thumb: straight

Heredity

You just observed a variety of traits within
your classroom. These traits were passed

down to your classmates from their parents.

Heredity is the passing of traits from parents

to offspring.

Heredity is complex. For example, a person

might have straight thumbs, but their

parents have curved thumbs.

Teach Time:
Essential Question: how are traits passed from one
generation to the next?

Traits

Traits are
characteristics.

How a trait appears is
called the phenotype.

The genotype
determines the genetic
makeup.

Phenotypes and Genotypes

Genotype

Phenotype

Dark hair

Blonde hair

BB or Bb

bb

Phenotype

Genotype

How can you model a family’s
phenotype?

​ https://youtu.be/6VGcidNwQEo

phenomenon

Draw

Create a family pedigree in your group using the reading passage

Multiple Choice

Using the Fugate family pedigree, how many of the children will have blue skin?

• 4

• 5

• 13

• 7

Dominant and Recessive Traits

Mendel hypothesized that there one genetic factor for purple
flowers and one genetic factor for white flowers.

The purple trait blocked the white trait, making it a dominant
trait.
The white trait was blocked, making it recessive trait.

​Classkick:

Blue people of Troublesome Creek pedigree activity

Gregor Mendel’s
Experiments

Mendel is known as the
Father of Genetics – the
study of how traits are
passed to offspring.

Mendel experimented
with pea plants.

Homozygous and Heterozygous

Alleles

Homozygous = both
alleles are alike -
homozygous
dominant = BB
homozygous
recessive = bb

Heterozygous = alleles
are different = Bb

​

​classkick: Punnett Square practice

Knowledge check:

Inquiry-Based Activity:

"Find Someone Who..."

-help you learn the

relationship between

alleles, traits, and

genes.

Crazy Snowman
Genetics

Knowledge check:
Vocabulary SL assessment-
Quizlet

Draw

The genotypes of both parents are Uu. In order for any
offspring to show the recessive phenotype, each parent
must have one recessive allele to contribute.

Lesson Summary:
part one

Real-World connection

Lesson Summary:
part two l pa

Real-World connection

Knowledge

check:

Vocabulary SL assessment-
Quizlet

Punnett Squares

A Punnett square can be used to predict the genotype and
phenotypes of the offspring of parents.

Father’s genes

Mother’s
genes

Brown hair

Brown hair

Brown hair

Brown hair

Brown hair

Blonde hair

Y

y

y

Y
YY

Yy

Yy

yy

Yellow

Yellow

Yellow

Green

Draw

C

C

c

c

Cc

Cc

Cc

Cc

Curly wings

Curly wings

Curly wings

Curly wings

Only possible genotype is Cc. All offspring will be hybrids.