CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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there will be 1 copy and 1 original.
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there will only be 1 original.
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Either A or B
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None of the above
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Detailed explanation-1: -What are duplications? The term “duplication” simply means that a part of a chromosome is duplicated, or present in 2 copies. This results in having extra genetic material, even though the total number of chromosomes is usually normal.
Detailed explanation-2: -DNA replication during S phase generates two identical copies of each chromosome. Each chromosome is destined for a daughter cell, but each daughter must receive one and only one copy of each chromosome.
Detailed explanation-3: -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-4: -Nearly all the cells in the human body carry two homologous, or similar, copies of each chromosome. The only exception is cells in the germ line, which go on to produce gametes, or egg and sperm cells. Germ line cells are haploid, which means they contain a single set of chromosomes.