1. How do external factors change an organism's genes to affect their offspring?
Lecture 1: During meiosis the chromatids move apart from each other during segregation. The chromatids have different forms of genes called alleles. The alleles have a certain genotype that will express a certain trait or phenotype. These combination can be predicted with probability via Punnette squares.
Terms of Use:
Segregation, Allele, Chromatids, Punnette Square, Probability, Genotype, Phenotype

2. Paired chromosomes exchange material Makes specific proteins
Concept Map
Meiosis
The replication of
Chromosomes
Errors can occur
Crossing-over
Gene
Paired chromosomes exchange material
Makes specific proteins

3. How did this Happen?

4. Parental Crosses

5. Allele movement during Segregation

6. Drawing and Labels
Punnette Squares can be used to calculate the probability of the genotypes and phenotypes of the offspring.

7. Primary Investigation
Write the question and answer in a complete sentences
Q1. How do alleles move during segregation?
A1.
Q2. How do genotypes express the characteristics or phenotypes?
A2.
Q3. How are the genotypes and phenotypes predicted in offspring?
A3.

8. Exit Slip
Write the question and answer in a complete sentence
How are new genetic combinations made through segregation in meiosis?
Claim (How):
Evidence (Why):
Example (What):