Epicanthal skin fold and simian crease are ch | vedclass

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(A) $Down$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ (trisomy of $21$).Individuals wit

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Down syndrome

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(A) $Down$ syndrome is a chromosomal disorder caused by the presence of an additional copy of chromosome number $21$ (trisomy of $21$).Individuals with $Down$ syndrome exhibit several characteristic physical features,including a broad forehead,a furrowed tongue,and a characteristic palm crease known as the simian crease.They also typically present with epicanthal skin folds (a skin fold of the upper eyelid that covers the inner corner of the eye).Therefore,these features are diagnostic characteristics of $Down$ syndrome.

Epicanthal skin fold and simian crease are characteristics of

Similar Questions

Define aneuploidy. How is it different from polyploidy? Describe the individuals having the following chromosomal abnormalities:
$(a)$ Trisomy of $21^{st}$ chromosome
$(b)$ $XXY$
$(c)$ $XO$

Mark the correct match.

Which disorder is caused by the loss of one $X$ chromosome in females?

Which of the following is an example of a non-Mendelian disorder?

In a diploid set of chromosomes,the deletion or addition of a chromosome leads to:

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