Huntington disease is inherited in an AUTOSOMAL DOMINANT fashion. If two individ

Question

Huntington disease is inherited in an AUTOSOMAL DOMINANT fashion. If two individuals with Huntington disease (both heterozygous) decide to have children, what is the chance they will have a child with the same disease? 25% 50% 75% 100% Hemophilia is an X-linked recessive condition. If a woman parents are phenotypically normal but has a brother with hemophilia, m a man who does have whose what is the chance that they will have a daughter NOT then with hemophilia? 25% 50% 5% Which of the following is NOT a genetic cause for a discrepancy between a person's chromosomal sex vs. phenotypic sex? congenital adrenal hyperplasia XYY syndrome misplaced or deleted SRY gene androgen insensitivity If a non-disjunction event happened in meiosis I during spermatogenesis involving chromosome 18, what would be the outcome i the gametes at the end of meiosis II? one gamete with one chromosome 18, one gamete with 2 chromosome 18, and two gametes with 3 chromosome 18 two gametes with one chromosome 18 and two gametes with three chromosome 18 one gamete with one chromosome 18 and 3 gametes with 2 chromosome 18 two gametes with two chromosome 18, and two gametes with zero chromosome 18 Which is the CORRECT statement regarding spermatogenesis and oogenesis: spermatogenesis starts during embryogenesis and continues throughout life spermatogenesis p one viable sperm and 3 bodies for each cell that undergoes meiosis once puberty is reached oogenesis starts during embryogenesis and produces only one cell undergoes meiosis the oogenesis process starts during puberty and produces 4 equally viable ova per cell that undergoes meiosis

Explanation / Answer

18) there will be 75% probabillity of their child suffering from the same disease.

19) the probability will be 0% because it is an X linked recessive disorder and a female can only be affected if she posses both (Xh Xh) and it is only possible if the father is diseased.

21) The answer will be (d) when nondisjunction will occur at meiosis than two gametes will be n+1 and other two will be n-1.

22) the correct answer will be (c)

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