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Download Biology Benchmark Review Second Nine (SB2) Weeks 2009-2010
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Biology Benchmark Review Second Nine (SB2) Weeks 2009-2010 1. Compare the number of strands for DNA and RNA. 2. Name the three parts of a nucleotide. 3. Mutations change the bases of DNA. If one base is replaced with another, what kind of mutation is this? 4. Genes for different traits are sorted independently of one another states the law of _______________ ____________________ 5. Cross one homozygous dominant genotype and one homozygous recessive genotype. Describe the results. 6. What is genetic material within a cell? ___ ___ ___ 7. What can cause changes in the genetic material that lead to variation in a species? 8. What genotype has two different alleles for a certain gene? 9. Name the complementary mRNA sequence for CGATTC. 10. What process makes mRNA from DNA? 11. If a (diploid) cell has 24 chromosomes, how many are in a (haploid) cell of that organism? 12. How many times does DNA replication occur before meiosis? 13.If two pea plants are 14. Write a homozygous crossed the resulting dominant genotype for the letter plants may be tall or B. short and produce yellow seeds or green seeds. This is supported by Mendel’s Law of ______________ __________________ . 15. What is the triplet code (3 letters) of mRNA needed to give an amino acid order called? 16. If two heterozygotes are crossed, how many of their offspring will also be heterozygotes? 17. If two rabbits are heterozygous for two traits in a genetic cross, what is the phenotypic ratio? 18. A pea plant’s height and seed color denote its ___________________. 20. Where does transcription occur? 19. What circular organelle is the place where proteins are made? 21. Diploid cells are converted into haploid cells by ___________ . 22. How do the bases pair up in DNA? 23. Draw a pedigree to show the likelihood a male will be colorblind if his mother is a carrier and his father is not colorblind. 24. If all plants that have the genotype Tt are tall what principle does this justify? 25. What two chromosomes may a sperm carry for fertilization? 26. What process makes sperm and eggs? 27. What type of reproduction produces offspring that are clones (identical)? 28. What project put together the sequence of all human DNA? 29. If the genes of an organism have been manipulated by a scientist what may it be called? 30. __________________ are long chains of molecules that make up DNA. 1. ____________________ 2. ____________________ 3. ____________________ 31. What is the genotypic ratio for two heterozygous organisms that are crossed? 32. Which bases have equal amounts in DNA? 33. Create a key to show the genotypes and phenotypes for all blood types 34. Cross a person with A blood and a person with AB blood. The parents of the person with A blood were both AB. How many A phenotypes result in that cross? 35. Cross a person that is heterozygous for B blood and a person with O blood. 36. What process allows small amounts of DNA to be copied into larger amounts for testing? 37. What are gametes? 38. Write a genotype that is homozygous recessive using the letter A. 39. What are the anticodons for the mRNA below? 40. Where does translation occur? GUACGUACC