Probability Of Traits In A Population Worksheets - Mr. Mullany printable pdf download

Probability Of Traits In A Population Worksheets - Mr. Mullany

Probability of Traits in a Population

Name _________________

Date _________

Background Vocabulary

 Purebred or Homozygous : - the same genes for a trait - ex; BB, bb

Hybrid or Heterozygous : - differnet genes for a trait - ex: Bb, Ww

 Genotype -

What the allele or gene is; ex.. BB or Bb.



 Phenotype - What the traits “physically” looks like. Brown Eyes , Tall

Frequency

: Number of individuals with a certain trait in a population.

Dominant Trait

: A trait that masks another trait.

Recessive Trait

: A trait that is suppressed by a dominant trait.

Problem:

What are some observable inherited traits in humans? What is the relationship

between frequency of a trait in a population and whether the trait is dominant or

recessive?

Make a hypothesis;

Make a hypothesis on the frequency of traits. Choose one of the hypotheses below.(you

can never really prove something true, but you can prove it false)

1- There are more dominant traits expressed in SMS students.

2- There are more recessive traits expressed in SMS students.

Hypothesis:____________________________________________________

_____________________________________________________________

Procedure

In this investigation you will conduct a survey of observable traits in humans (the

population tested will be your class).

1- Conduct the survey and record results.

2- Graph your results and calculate the frequency of each trait in a population.

Mr. Mullany

Probability Of Traits In A Population Worksheets - Mr. Mullany