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Women have two X chromosomes, one of which is "switched off". The inactivation of the X chromosome occurs randomly throughout the embryo, resulting in cells that are mosaic with respect to which chromosome is active.

Does someone with turner's syndrome sometimes have trouble hearing?

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A normal woman whose father was a hemophiliac marries a normal man. What are the chances of hemophilia occurring in their children?

2 Answers   Microsoft,

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What is Heterozygote detection?

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Is Haemophilia a sex linked disease?how?

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what is the difference between back cross and test cross?

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what is the concept behind Gene silencing technology?

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what are Stem Cells ?

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what is the difference between test cross and back cross?

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what is the role of Beta-lactamase in Gene Cloning ?

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How do u differentiate between Meiosis I & Meiosis II?

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People who can roll their tongues contain a dominant allele for tongue rolling. If people do not contain the tongue rolling gene, then they cannot roll their tongue no matter how hard they try. Consider the following situation: If a homozygous dominant tongue roller mates with a homozygous recessive non-tongue roller, then what is the probability of the offspring inheriting the tongue rolling gene?

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sir/ma'm im doing my msc in biotechnology.im concern that can go for phd in genetics? and how?? plz help me in this..thank you

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