Biology, asked by Rajeshkanna623, 11 months ago

Which kind of disease is "Down's syndrome"?
(a) Sex-linked (b) Viral
(c) Bacterial (d) Autosomal

Answers

Answered by aayushrathi2005
0

Explanation:

the answer is a) sex linked

Answered by gadakhsanket
0

Dear Student,

In humans, there are total 46 chromosomes. Any deviation from this results in aneuploidy.

◆ Answer -

(d) Autosomal

● Down syndrome -

- Down's syndrome is caused by non-dysjuction of chromosomes during meiosis.

- Karyotype of Downs syndrome is usually trisommy 21.

# Clinical features -

- mental retardation

- webbing of neck

- flat facies

- upward slant to eye

- congenital defects

- dwarfism

- simian course

- infertility

- abnormal ears

- Brushfield spots

# Diagnosis -

- Down's syndrome can be diagnosed prenatally by karto-typing.

Thanks dear. Hope this helps you...

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