NEET PG DENTAL EXAM

EMBRYOLOGY

CHROMOSOMES AND CELL DIVISIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A chromosome that has been duplicated means that ____
A
there will be 1 copy and 1 original.
B
there will only be 1 original.
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Monosomy, or the loss of one chromosome in cells, is another kind of aneuploidy. “Mono-” is Greek for “one"; people with monosomy have one copy of a particular chromosome in cells instead of the normal two copies.

Detailed explanation-2: -The two identical chromosomes that result from DNA replication are referred to as sister chromatids. Sister chromatids are held together by proteins at a region of the chromosome called the centromere.

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