Huntington's disease is caused by a autosomal dominant that is lethal in embryos in the homozygous dominant conditionIf one of your parents has the disease and the other does notwhat is the probability that you will develop the disease? assume if you inherit the Huntington's gene you will get the disease)? 1/4 0 1/2 3/4

Which one of the following phenotypes is passed from mother to all her male and female children? O Y-linked Mitochondrial X-linked dominant Autosomal dominant

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A man affected with HoHomania and a woman affected with HoHomania mate and have an unaffected son.  Which of the following mechanisms of inheritance can not be ruled out?  Choose all that can not be ruled out. Autosomal Dominant Autosomal Recessive Y-linked All of the mechanisms shown can be ruled out X-linked Recessive X-linked Dominant

Clara has polydactyly, an autosomal dominant that is 80% penetrant. Clara inherited her polydactyly from her mother, her father had no polydactyly in his family. She has an extra toe on her left foot. Her husband Ralph has no polydactyly in his family. A) What is the chance that Clara will have a child that will inherit polydactyly? B) What is the chance that the child will express polydactyly. You can leave these as un-calculated equations.

Which of the following conditions is not the result of a chromosomal alteration? ○ Chronic myelogenous leukemia (CML) ◇ Down syndrome (Trisomy 21) Turner syndrome O Mosaicism

An unaffected man and an unaffected woman mate and have a daughter affected with Fifimania. Which of the following mechanisms of inheritance can not be ruled out? Choose all that can not be ruled out. Autosomal Recessive Autosomal Dominant X-linked Dominant X-linked Recessive All of the mechanisms shown can be ruled out Y-linked

Hemophilia, disease in which the blood lacks a clotting factor, is caused by an X linked recessive gene. Joe doe not have hemophilia and Lucille is heterozygous for the condition.  What is the chance that their MALE child will have hemophilia? (Note: you are calculating the probability for their MALE children only, in other words if they have 1 male child, what is the probability that he will be born with the disease?)     0%     1/4 or 25%     2/4 or 50%     3/4 or 75%     4/4 or 100%

What is the most likely mode of inheritance for this trait? I 1 2 1 2 3 4 6 7 OLO 2 3 4 5 6 7 8 9 10 4 5 6 II E III IV 1 □□ 1 2 3 X-linked dominant X-linked recessive Y-linked autosomal recessive autosomal dominant 5

Albinism, lack of pigmentation in humans, results from an autosomal recessive gene designated a. Two parents with normal pigmentation have an albino child. What is the probability that their next child will be albino? What is the probability that the next child will be an albino girl? If the child is normal, what is the probability that it will be a carrier (heterozygous) for the albino gene?