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Holandric mode of inheritance

ehd123

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8 years ago

Holandric mode of inheritance

What is meant by a holandric mode of inheritance?

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B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience

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bio_man

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Educator

8 years ago

In mammals, Y-linkage, also known as holandric inheritance, is the determination of a phenotypic trait by an allele (or gene) on the Y chromosome.

Because the Y-chromosome is small and does not contain many genes, few traits are Y-linked, and Y-linked diseases are rare. Since the only humans who have a Y chromosome are males, Y-linked traits are passed only from father to son, with no interchromosomal genetic recombination.

Y-Chromosome deletions are a frequent genetic cause of male infertility. Having hairy ears was once thought to be a Y-linked trait in humans, but that hypothesis has been discredited.

PS: Learned something new!

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ehd123 Author

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8 years ago

This is interesting!
PPS: Likewise Face with Stuck-out Tongue

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B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience

bio_man

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Educator

8 years ago

I'll mark this one solved too.

Ehd123, I'll eventually look at all the questions you posted, but I'm retiring for the day!

Will continue tomorrow

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ehd123 Author

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8 years ago

Thank you so much, bioman Slight Smile

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B.Sc in Biology
M.Sc Neuroscience
PhD. Candidate in Neuroscience

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