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1. Blood type in humans is controlled by ____ alleles with an additional Rh factor that determines _________ . one; color two; positive or negative charge three; shape of blood cells four; phenotype 2. If two people are heterozygous for cystic fibrosis, what are the chances that their children will have the disease? 25% chance 50% chance 60% chance none of the above 3. Of the following, which represents a homozygous recessive genotype? TT Tt tt TTT 4. Blood types in humans are an example of ______, while the outcome of pink flowers when red and white flowers are crossed is an example of ______. complete dominance; polygenic inheritance polygenic inheritance; incomplete dominance sex-linked inheritance; multiple alleles multiple alleles; incomplete dominance 5. In undisturbed areas, older rock layers lie ____ successively younger rock layers. below above in between on top of 6. Change in the hereditary features of a type of organism over time is ____. growth biogenesis spontaneous generation evolution 7. An allele carried on a Y chromosome will affect ______. all of the female offspring some of the male and female offspring all of the male offspring none of the offspring 8. Which of the follow lists the genetic parts from largest to smallest? gene; DNA; allele; chromosome chromosome; DNA; gene; allele DNA; gene; chromosome; allele allele; chromosome; DNA; gene 9. Which of the following accurately compares traits controlled by multiple alleles with those controlled by polygenetic dominance? Polygenic inheritance is a group of genes acting together to produce a wide variety of phenotypes while multiple alleles traits produce more than three phenotypes of that trait. Polygenic inheritance and multiple allele traits work the same way. Polygenic inheritance occurs when a group of genes act together to produce one phenotype while multiple alleles produce three or more phenotypes. Polygenic inheritance traits are produced by a group of genes acting together, while multiple alleles produce a wide variety of phenotypes. 10. Through _______ _______, tomatoes can now be picked and transported great distances before they ripen. 11. Through genetic engineering, scientists are experimenting with methods to change the arrangement of ______ in a gene. 12. Punctuated equilibrium occurs over a relatively ______ period of time, usually as a result of a ________. 13. _________ is a continuous series of mutations and variations over time that results in a new species. Follow 2 answers 1.B 2.A 3.C 4.D 5.A 6.D 7.C 8.B 9.A 10.selective breeding 11.DNA 12.short; genetic mutation 13.Gradualism

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