Hardy-Weinberg Section Questions 10-1S are specific to a NEw mutation and its ef

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Hardy-Weinberg Section Questions 10-1S are specific to a NEw mutation and its effects on the INITIAL RECIPIENT ONLY 10. A germ cell mutation exhibited in all progeny who inherit it A) Chromosomal deletion 8) Sex Chromosome Y-linked E) Autosomal recessive C) Autosomal dominant D) Sex Chromosome X-linked 11. A nearly always lethal germ cell mutation A) Chromosomal deletion B) Sex Chromosome Y-linked E) Autosomal recessive C) Autosomal dominant D) Sex Chromosome X-linked 12. A germ cell mutation that is only carried in one sex A) Chromosomal deletion B) Sex Chromosome Y-linked E) Autosomal recessive C) Autosomal dominant D) Sex Chromosome X-linked 13. A germ cell mutation exhibited in none of the progeny who inherit it A) Chromosomal deletion B) Sex Chromosome Y-linked E) Autosomal recessive C) Autosomal dominant D) Sex Chromosome X-linked 14. A germ cell mutation that renders the progeny unable to reproduce A) Chromosomal deletion B) Sex Chromosome Y-Jinked C) Autosomal dominant D) Sex Chromosome X-linked E) Autosomal recessive 15. A germ cell mutation that is only exhibited in one sex A) Chromosomal deletion linked D) Sex Chromosome X- B) Sex Chromosome Y-inkedE) Autosomal recessive Autosomal dominant 16. Once a spontaneous dominant germline mutation has occurred; it can be lost most quickly by A) Natural selection against the wild-type phenotype D) Genetic Drift B) Marrying a cousin E) Non-Random mating C) Random mating Using the pedigree at right, answer questions 17-18 17. Which of the following are KNOWN carriers A) 1-1, Il-4, I11-2, IV-2 B) 11-3, 11-4, III-4, IV-3 C) 11-4, 111-2, IV-2, IV-3 D) All of the above E) None of the above 18. The children created from IV-2 and IV-3 are the result of A) Cantankerous mating B) Contaminated mating C) Consolidated mating D) Consanguinous mating E) Corporation mating

Explanation / Answer

10) The correct option is C. Autosomal dominant.

In an autosomal dominant disease, if one inherits the abnormal gene from only one parent, you can get the disease.

11) The correct option is A. Chromosomal deletion.

Multigenic deletions have severe consequences. If by inbreeding such a deletion is made homozygous, then the combination is almost always lethal.

12) The correct option is D. Sex chromosome X-linked.

The female is homogametic, with two X chromosomes (XX), while the male is the heterogametic sex, with one X and one Y chromosome (XY). Genes on the X or Y chromosome are called sex-linked.

13) The correct option is E. Autosomal recessive.

In autosomal recessive, disease can be passed down through families. It means two copies of an abnormal gene must be present for the disease or trait to develop.

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