13. People who carry genetic disorders (carriers) are (A) haploid. (B) polygenic
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13. People who carry genetic disorders (carriers) are (A) haploid. (B) polygenic. (C) heterozygous. (D) homozygous. A method to trace the inheritance of a trait over many generations is called a (A) phenotype. (B) genotype. (C) pedigree. (D) carrier tree. 14. 15. The insertion or deletion of a single base pair of DNA results in a (A) frameshift mutation. (C) nonsense mutation. (B) duplication mutation. (D) missense mutation. 16 Gregor Mendel called the generation created by crossbreeding the parental generation the (A) first filial generation. (C) cross filial generation. (B) second filial generation. (D) second parental generation. 17.A recessive trait is expressed only by an individual who is (A) haploid. (B) polygenic. (C) heterozygous. (D) homozygous. 18.A tall pea plant (TT) and a tall pea plant (T) have (B) the same filial type. (D) the same phenotype. The failure of homologous chromosomes to separate properly during meiosis is called (A) the same alleles. (C) the same genotype. 19. (A) telomere failure. (B) disjunction. (C) nondisjunction. (D) zygote failure. Watson and Crick's model of DNA replication is called (A) transcription. (B) semiconservative. (C) conservative. (D) translation. 20. 21. Pea plants usually reproduce by (A) test-crossing. (B) cross-pollination. (C) cloning. (D) self-pollination. The pairs of alleles in an organism's genetic makeup are called its (A) genotype. (B) phenotype. (C) filial type. (D) parental type. The concept that a random distribution of alleles occurs during gamete formation is the (A) concept of probability. (B) concept of dominance. (C) law of segregation. (D) law of independent assortment. 22. 23. continueExplanation / Answer
15.A frameshift mutation.
It is caused by insertion or deletion of single base pair.
16. A First filial generation.
Mendel found that if true breeding Tall [T] plants are crossed (bred) with true breeding short [t] plants, all the next generation of plants, called F1(first filial generation).
17.D homozygous
Recessive trait are only expressed in homozygous condition.
18.D the same phenotype
As T is dominant. So TT and Tt both are tall plant.
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