Quiz 9

What is a Punnett Square for an intercross of a pure line with dominant trait and a recessive trait individual?

A 2x2 grid that shows the possible combinations of alleles from a pure dominant (AA) and a recessive (aa) parent. For this cross, all offspring will have the genotype Aa.

What are the offspring genotypes and phenotypes from the Punnett Square of AA x aa?

All offspring will have the genotype Aa (100%). All will display the dominant phenotype due to the presence of the dominant allele A.

What is Mendel's Principle of Segregation?

Each individual carries two alleles for each gene, which segregate during gamete formation ensuring that gametes receive only one allele from each pair.

What is Mendel's Principle of Independent Assortment?

Genes for different traits assort independently of one another during the formation of gametes.

1. Describe the Hershey-Chase experiment in detail. Emphasize on the logic.

Logic ( purpose): Is DNA or protein the genetic material that viruses use to infect cells?

Describe the Hershey-Chase experiment in detail. Emphasize on the logic, design, results and their conclusion

Design( what they did):