CELL DIVISION
MEIOSIS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Length and position of the centromere only.
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Length, centromere position, and staining pattern only
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Length, centromere position, staining pattern, and traits coded for by their genes.
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They have nothing in common except they are X-shaped.
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Detailed explanation-1: -In a human karyotype, chromosomes are arranged in 23 Paris. If we choose one of these pairs, suck as pair 14, which of the following do the two chromosomes of the pair have in common? Length, centromere position, staining pattern, and traits coded for by their genes.
Detailed explanation-2: -The karyotype of a normal human male would show a total of 23 pairs of homologous chromosomes. If a cell contains 20 units of DNA during G 2, it will have 40 units of DNA in S. During prometaphase, the sister chromatids organize into a single row in the center of the cell.
Detailed explanation-3: -A karyotype is an organized profile of a person’s chromosomes. Two chromosomes specify sex, XX for female and XY for male. The rest are arranged in pairs, numbered 1 through 22, from largest to smallest. This arrangement helps scientists quickly identify chromosomal alterations that may result in a genetic disorder.
Detailed explanation-4: -The chromosomes in a homologous pair each have the same genes in the same order, but there may be variation between them, resulting in different alleles.
Detailed explanation-5: -1: A human karyotype: This karyotype is of a male human. Notice that homologous chromosomes are the same size, and have the same centromere positions and banding patterns. A human female would have an XX chromosome pair instead of the XY pair shown.