CELL DIVISION
MEIOSIS AND GENETIC VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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this person has 45 chromosome and FEMALE
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this person has 43 pairs chromosome and FEMALE
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this person has an extra chromosome and MALE
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this person is missing a chromosome and MALE
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Detailed explanation-1: -“Girls born with XY chromosomes are genetically boys but for a variety of reasons – mutations in genes that determine sexual development – the male characteristics are never expressed. They live their lives as girls and then women, and a few can even give birth.
Detailed explanation-2: -Turner syndrome (also known as monosomy X) is a condition caused by monosomy . Women with Turner syndrome usually have only one copy of the X chromosome in every cell, for a total of 45 chromosomes per cell. Rarely, some cells end up with complete extra sets of chromosomes.
Detailed explanation-3: -The twenty third pair is called the sex chromosomes, while the rest of the 22 pairs are called autosomes. Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes. However, there are exceptions to this rule.
Detailed explanation-4: -Males with XYY syndrome have 47 chromosomes because of the extra Y chromosome. This condition is also sometimes called Jacob’s syndrome, XYY karyotype, or YY syndrome.