TCS BIOLOGY TEST: UNIT 3 covering Chapters 6 & 7 of reading guide) MULTIPLE CHOI
ID: 141282 • Letter: T
Question
TCS BIOLOGY TEST: UNIT 3 covering Chapters 6 & 7 of reading guide) MULTIPLE CHOICE hoose the letter of the best answer. (1 point each) 's mopolybrid crossof a purebred white-fowered pan ad a purebred purple-flowered plant, the Fi generation a. showed only the dominant trait. b. showed only the recessive trait. c. did not receive any recessive alleles. d. remained purebred. 14. Which of the following phrases best describes the function of meiosis? a. conserves chromosome number, produces genetically identical cells b. conserves chromosome number, produces haploid cells c. reduces chromosome number by half, produces diploid cells d. reduces chromosome 15. Which of the following cell types is haploid? a. liver cell b. somatic cell c. sperm cell d. germ cell 16. The fusion of haploid gametes is called a. gametogenesis b. meiosis. c. reassortment. d. fertilization 17. All of the genetic material that makes up an organism is its a. gamete genome. c. phenotype. d. testcross 18. Which of the following statements is true of heterozygous alleles? a. They are identical genes at the same locus on brother chromatids.Explanation / Answer
(13) A. Showed only dominant trait. according to mendel, in F1generation always give dominant trait. F1 generation of pure homozygous are always heterozygous.
(14)D. Reduce chromosome number. Because DNA not replicate in meiosis.
(15)C and D both sperm and germ cells are haploid. Germ cells are sperm and egg cells and formed from meiosis
(16)D. Fertilization.
(17)B. genome (where all genetic information are stored. And genome decide the characteristic of organism.
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