LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A picture of all the chromosomes in a cell arranged in pairs
A
Pedigree
B
Karyotype
C
Genome
D
Carrier
Explanation: 

Detailed explanation-1: -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-2: -A karyotype is a visual display of all the chromosomes in a cell, arranged in homologous pairs and in decreasing size order. An example of a karyotype is shown in Figure 4.

Detailed explanation-3: -A normal human karyotype consists of 22 pairs of autosomes and two sex chromosomes.

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