Question

Down syndrome is
A. Sex-linked
B. Chromosomal
C. Dominant
D. Recessive

Answer 1

Hint:
Prior to discussing the solution, it is crucial to understand what Down syndrome entails.
Down's syndrome is a genetic disorder that arises from abnormal cell division that produces excess chromosome 21 genetic material.
Down's syndrome can cause developmental delays, intellectual difficulties, and a unique facial appearance. It could be connected to thyroid or heart issues.

Complete answer:
An extra chromosome causes the genetic disorder known as Down syndrome. The human body has separate "packages" of genes called chromosomes. They influence how a baby's body develops during pregnancy and after delivery, determining how it will seem and function.
A newborn typically has 46 chromosomes. In newborns with Down syndrome, one of these chromosomes, chromosome 21, contains an extra copy. Trisomy is an additional copy of a chromosome. Trisomy 21 is a term frequently used to describe Down syndrome.
The baby's body and brain develop differently as a result of this extra copy, which may lead to issues with the baby's mental and physical growth. Here are some physical traits associated with Down syndrome:

• • The face that is sagging, particularly across the nose bridge

• Almond-shaped, upward-slanted eyes

• Tiny hands and feet, a short neck, and tiny ears.

• Prone to poking out of the mouth.

• The iris of the eye has a few tiny white spots (a colored region).

• The palm of the hand has a single line across it.

• The tiny pinky fingers have the occasional tilt toward the thumb.

• Muscle weakness or sagging joints

• The average height of adults and children is shorter.

Option ‘B’ is correct

Note:
Down syndrome can be difficult both for the child and their family when they learn of it. Each person with Down syndrome has special talents and the capacity to thrive.
The majority of people with Down syndrome, however, live quite ordinary lives when given the appropriate medical care and support.