Subject/Period - 7th Grade Life Science Lansing Middle School
Subject/Period __________________ Name __________________________
Assignment Genetics Review Sheet Date __________________________
Test on the Genetics Unit is Friday, 1/22.
Some studying tips:
1. Read over your class notes. Quiz yourself after each page of notes.
2. Practice answering the questions on this review sheet.
3. Circle the questions that you are having trouble with. Then go back over the notes, homework, and/or textbook section on that topic. If you still don’t understand, ask Ms. Salmon for help.
You should be able to….
1. Define and use all of the following terms:
|Gene |Meiosis |Mutation |
|Dominant allele |Fertilization |Mutagen |
|Recessive allele |Chromosome |Selective Breeding |
|Phenotype |Sex Chromosomes |Genetic Engineering |
|Genotype |Sex-linked Trait |Clone |
|Purebred |Carrier |Stem Cell |
|Hybrid |DNA |Replication |
|Sexual Reproduction |Nucleotide |Carrier |
|Asexual Reproduction |Incomplete Dominance | |
|Gametes |Nucleotide | |
2. Create a Punnett square to predict the possible offspring from 2 parents. Calculate the chances of producing offspring with certain genotypes or phenotypes based on the Punnett square.
3. Compare and contrast sexual reproduction and asexual reproduction. Be able to complete a Venn diagram. Review the pictures we used to describe them.
4. Calculate the number of chromosomes in a gamete of any animal when given the number of chromosomes in a normal body cell.
5. Describe the cells that are produced by meiosis. How is meiosis different from mitosis? What happens during meiosis? Review the diagram in worksheet 6.2.
6. Explain how meiosis helps cause variation (differences) within a species.
7. Define and know the difference between each of the following: a sex cell, a sex-linked trait and a sex chromosome.
8. Describe and give examples of human genetic disorders and their causes. How does inheritance differ in sex-linked traits vs. normal inheritance? Why are males more likely to get a sex-linked disorder? Be able to do a Punnett square for a sex-linked trait.
9. Read and analyze a pedigree.
10. Describe the structure of DNA. Know which bases pair with each other. Also know where DNA is located in the cell?
11. Explain how DNA carries information i.e. how does DNA code for proteins, how many bases make up the code for one amino acid.
12. Describe mutations. How do mutations affect genes and organisms? When are mutations considered helpful, harmful, neutral, and both harmful and helpful? Give an example of a mutation of each kind.
13. Compare and contrast selective breeding and genetic engineering. How have human beings used each to create organisms with desired traits? What does the term transgenic organism mean?
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