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2.c A) fertilization B) DNA C) heredity D) genetics 2.
2.c, 2.d A) He discovered the shape of DNA. B) He was the first scientist to clone a sheep. C) He discovered that genes are found on chromosomes in the cell's nucleus. D) He recorded evidence that an organism's traits are determined by factors passed from parents to offspring. 3.
2.c, 2.d A) day lilies B) pea plant C) morning glory D) pepper plant 4.
2.d A) They reproduce quickly. B) They are easy to grow. C) They reproduce asexually. D) They come in many varieties. 5.
2.c, 2.d A) He used mathematical methods to analyze large data sets. B) He studied only one generation. C) He studied many different species of plants and averaged the data. D) He used a microscope to look at plants' genes. 6.
2.c, 2.d A) recessive B) blended C) inherited D) dominant 7.
2.d A) It made him famous immediately. B) It was rediscovered after 35 years. C) It is not important in the modern study of genetics. D) It confirmed earlier scientists' discovery of chromosomes. 8.
2.c, 2.d A) chromosomes B) genotype C) phenotype D) pedigree 9.
2.c, 2.d A) heterozygous B) homozygous C) dominant D) recessive 10.
2.c, 2.d A) DNA profile B) Punnett square C) gene therapy D) pedigree tree 11.
2.c, 2.d A) males B) females C) sons D) fathers 12.
2.c, 2.d A) all the observable traits of an organism B) a section of DNA that has information about a specific trait C) forms of a gene with different information D) a model used to predict possible genotypes 13.
2.c, 2.d A) Genetic disorders are caused by exposure to nuclear radiation. B) Genetic disorders are spread by bacteria in the air. C) Genetic disorders are caused by poor eating habits. D) Genetic disorders are inherited from parents. 14.
2.c, 2.d A) AB B) A C) B D) O 15.
2.c, 2.d A) people over the age of 65 B) females C) males D) people under the age of 20
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