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Transcript
Week 7 Quiz 1. A. B. C. D. Name_____________________ Each cell in the human body has 46 chromosomes 23 chromosomes 92 chromosomes 46 pairs of chromosomes _____1. _____2. _____3. _____4. _____5. _____6, _____7. _____8. homozygous offspring alleles heterozygous Punnett Square dominant chromosome recessive A. B. C. D. E. F. G. H. 2. Each sex cell in the human body has A. 46 chromosomes B. 23 chromosomes C. 92 chromosomes D. 46 pairs of chromosomes AA shows this trait, which is what can always be observed two of the SAME trait tt shows this trait organized structure of DNA and protein found in cells forms of genes represented with letters children or young of parent two DIFFERENT traits chart that chows all possible combinations of alleles between two parents Patterns of Inheritance Write in the correct alleles in the squares and circles that match the description below. 1. The FATHER is homozygous dominant and the MOTHER is homozygous recessive for a certain trait. 2. Complete Punnett Square #1 to determine the possible combinations of alleles for each of the offspring’s trait possibilities. 3. What is the percentage of offspring with the dominant trait and with the recessive trait? ___Generation #1 _____ % will have the dominant trait. _____ % will have the recessive trait. ___Generation ___Generation . In the 2nd Generation above you should have alleles written for the circled parents. Use these alleles to fill in the Punnett Square #2 to figure out the possible outcome for each offspring. What are the percentages for this parent combination? #2 ____% will have the dominant trait. ____% will have the recessive trait. Extra Credit 1. The type of reproduction that occurs with one parent. A. sexual B. asexual C. traits D. characteristics 2. The process by which the DNA from one cell is injected into a new cell. A. asexual reproduction B. sexual reproduction C. cloning D. dominant 3. The study of variation and heredity. A. genealogy B. sexual reproduction C. genetics D. traits 4. A change in the DNA can cause a A. single-celled B. mutation C. fertilization D. characteristic 5. An organism that is heterozygous for a trait. A. single-celled B. mutation C. carrier D. trait 6. A condition that causes a pattern of physical changes A. syndrome B. carrier C. fertilization D. characteristic