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Name ______________________________________________ Hour ________ MATCHING Place the matching letter in the space provided. _____ 1. DNA Replication a. DNA reproduction or duplication _____ 2. Cell b. Chemical in the nucleus of cells that carries genetic information; it is a double helix _____ 3. Meiosis c. Cell division of the body’s cells _____ 4. DNA d. The smallest unit of life able to function on its own _____ 5. Heredity e. Parts in the nucleus of a cell that contain genes. Seen in mitosis and are “X shaped.” _____ 6. Chromosome f. process where genetic factors are passed from 1 generation to the next. _____ 7 .Mitosis g. Parts on chromosome that carry factors from parent to offspring (hint: we have around 25,000 of them) _____ 8. Gene h. A trait that is ALWAYS expressed. _____ 9. Dominant i. Cell division of the sex cells (gametes: egg and sperm) _____ 10. Recessive j. A trait that is not always expressed (shows up only when there is no dominant trait present). MITOSIS List the stages of mitosis & fill in the missing words. (On the assessment you will need to know what happens in each phase). 1. _______________ ____________ is replicating; the cell is growing. 2. ______________ Mitosis begins and ___________________ appear. 3. _______________ Chromosomes line up & attach to _____________ _______________. 4. _______________ Chromosomes split apart & move to __________________ ends of the cell. 5. _______________ The ____________ reforms, the cell starts to pinch in 2. 6. _______________ Cell Division – 2 new _____________ are formed. IN THE TABLE BELOW, ANSWER THE QUESTION FOR MITOSIS/MEIOSIS MITOSIS Type of cell (body or sex cell) Number of divisions Number of daughter cells produced Number of chromosomes in daughter cells Label the following DNA structure MEIOSIS More Matching Vocabulary: _____ 1. Homozygous a. The physical trait of an individual _____ 2. Heterozygous b. Having 2 identical alleles for a trait (tt or TT). _____ 3. Genetic engineering c. Having 2 different alleles for a trait (Tt). _____ 4. Genotype d. The genetic makeup of an individual _____ 5. Phenotype e. The manipulation of DNA by splicing and recombining it in order to produce new characteristics in a species. Complete the Punnett Square and answer the questions that follow: D = dimples present d – no dimples Mommy Daddy 1. In the cross above, how many offspring will have dimples? What is the percentage? 2. In the cross above, how many offspring will not have dimples? What is the percentage? 3. Is it possible that the parents above would NOT produce a child with dimples? Explain. 4. Which offspring are heterozygous and homozygous (list the letters).