Q. A person with a genetic composition AA+XYY composition. The non-disjunction is in the __________ parent and in _____________ meiotic division.

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Q. A female with AA+ XXX can only result from female parental non-disjunction.

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Q. The intersex is produced by ________________

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Q. All genes in sex chromosomes are sex linked.

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Q. An X linked recessive gene would appear to __________________

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Q. A Y linked gene ___________________

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Q. Genes which are present in the homologous region of X and Y chromosomes are called______________

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Q. Choose the odd one out.

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Q. X linked dominant trait tends to be milder in heterozygous females. State if it is true or false.

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Q. In a family of four including a normal mother, a normal father, a color blind son and a normal son; who do you think has the defective X gene other than the affected son?

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Q. A colorblind mother and a normal father give birth to a Klinefelter child with normal vision. Where do you think the non-disjunction has taken place?

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Q. If colorblindness was a dominant trait, which of the following would not be true?

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Q. What is the probability that the son of a color blind father would be color blind?

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Q. Y linked inheritance is _______________ inheritance.

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Q. Which of the following is wrong?

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Q. Which of the following is a Y linked gene?

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Q. Which of the following is partially sex linked?

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Q. A turner child born to normal parents is haemophilic. Where did the non-disjunction occur?

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Q. Both Drosophila and mammals have XY system of sex determination. Dosage compensation y inactivation of one X chromosome is seen in ___________________

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Q. Barr bodies are found ________________

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