Punnet square test Flashcards
The nature of science and punnet squares review
Who is the father of genetics?
Gregor Mandel
What is a dominant allele?
Stronger,expressed genes (capital)
What is a recessive allele?
Not expressed, weaker genes (only expressed with homozygous state.)
What is the scientific method?
Systemic process of investigation
What best describes a scientific theory?
Why it happens
What is the role of a control in an experiment?
Serves as a standard or base-line for comparison.
What is the primary purpose of a hypothesis?
Acts as a testable statement that predicts the outcome.
What does a punnet square show
Probability of different genotypes and phenotypes of offspring
What is the genotype of an organism that has 2 different alleles for a trait (e.g., Tt)
Heterozygous genotype
If 2 heterozygous genotype indivisuals (Tt) are crossed, whats the probability of their offspring being homozygous dominant (TT)
25%
In a punnet square, what do the letters represent?
Alleles or parental genotypes
What does a hypothesis do?
Predicts outcome of an expirament beofre it starts.
In a dihybrid cross, how many possible genotypic combinations can be produiced by the 2 parents?
16
What is the term used to describe an organisms physical apperance, such as tall or short?
phenotype
Why is it important to repeat expiraments in science?
Allows to verify the accuracy of the results.
What does it mean for an expirament to be “reproducible”
Be able to be repeated with the SAME results
In an expirament, the indapendent variable is what?
The factor being manipulated
6 steps of scientific method?
Observe, Hypothesis, Test it, Data, Conclusion, Communicate
