This human karyotype is unusual because chromosome set
a. 5 has chromosomes of different shapes
b. 10 is missing genetic material
c. 14 has enlarged centromeres
d. 21 has an extra chromosome

This human karyotype is unusual because chromosome seta 5 has chromosomes of different shapesb 10 is missing genetic materialc 14 has enlarged centromeresd 21 h class=

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Answer:

The correct option is d) 21 has an extra chromosome

Explanation:

The complete array of chromosomes that an individual possesses is known as the karyotype of the individual. Humans have 46 chromosomes  which make up 23 pairs.

In the karyotype shown in the picture, the 21st pair has an extra chromosome. Such a condition is known as Down's Syndrome.  In such a person, the mental ability of the person is influenced and he usually suffers from mental disabilities. The facial features of such a person also are different.

This human karyotype is unusual because chromosome set 21 has an extra chromosome (option d).

  • A karyotype is a graphic representation of the individual's collection of chromosomes.

  • In diploid organisms (e.g., humans), each cell receives two homo-logous chromosomes, one from each parent.

  • Human somatic (body) cells contain 46 chromosomes, which are organized into two sets of 22 homo-logous chromosomes and two sex chromosomes (either XX or XY).

In conclusion, this human karyotype is unusual because chromosome set 21 has an extra chromosome (option d).

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