Download userfiles/1290/Genetics Review Sheet

Name: _______________________________________ Block: ______
Genetics & Heredity Review Sheet:
Define & give example :
Genotype – An organism’s ______________ ________________ Ex: ___________
Phenotype – An organism’s ______________ _______________ Ex: ___________
Dominant gene – The trait that will show up when ________________________
____________________________. We show it by using ________________ letters.
Recessive gene – The trait that will show up only when ____________________
__________________________. We show it by using __________________ letters.
Answer:
Where do an organism’s traits come from? Directly from _______________.
Two forms of the gene for the same trait are called _____________________.
Where are genes located? _________________________________________.
Where are chromosomes located? __________________________________.
DNA is the _____________________ for the organism.
# of chromosomes a normal (not gametes) human cell has ? ___________
Be able to do a Punnett Square:
Parents: BB and Bb (for Brown eyes B and blue eyes b)
What % will have brown eyes?
What % will have blue eyes?
What % are homozygous?
What % are heterozygous?
Asexual vs. Sexual Reproduction:
Explain two advantages and disadvantages for each type of reproduction:
Advantages:
Disadvantages:
Sexual:
Asexual:
What evidence in a species would indicate the type of reproduction involved?
Give an example of a type of organism that reproduces using each method.
Asexual –
Sexual Mitosis vs. Meiosis:
Description:
# of cells at the end of the process
# chromosomes at the end
Type of cell that does this
Genetic variety: are cells genetically
the same or different?
Give examples of:
Genetic engineering
Mutation
Mitosis
Meiosis