genetics multiple choice answer check please 13. Aneuploids arise because of whi

Question

genetics multiple choice answer check please

13. Aneuploids arise because of which mistake in meiosis? A. Translocation B Nondisj uction C. Mismatch D. Crossover E. Pyrimidine dimers 14. How many chromosomes does a human with nu somy have? A, 21 B. 22 C. 23 D, 44 E. 46 16. Which chromosomal mutation results in this mistake: ABC e DEQRS and MN OPFG? A specific type of this mutation causes familial Down syndrome. A. Trisomy B. Duplication D. Translocation E. Deletion 17. Which chromosomal mutation results in this chromosome: ABC FEDG? Inversion Deletion C. Insertion Duplication

Explanation / Answer

13- d-nondisjunction- in meiosis the the chromosome segregation wont be proper to give the exact haploid gametes.

14. d-44- nullisomy- Loss of both pairs of chromosomes(2n-2)

16. b- duplication- extra copies of chromosomal regions are formed.

17. b- deletion-delete the sequence of a genome.

18. b- reverse transcriptase- transcribes RNA to DNA

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