In humans, if a non-disjunction event led to an individual with a genotype of XO, they would _____.Group of answer choicesbe male because they only have one X chromosomedisplay both male and female characteristicsbe female because they do not have a Y chromosomenot surviveNext
Question
In humans, if a non-disjunction event led to an individual with a genotype of XO, they would _____.Group of answer choicesbe male because they only have one X chromosomedisplay both male and female characteristicsbe female because they do not have a Y chromosomenot surviveNext
Solution
The individual would be female because they do not have a Y chromosome.
Here's why:
In humans, sex is determined by the X and Y chromosomes. Typically, females have two X chromosomes (XX) and males have one X and one Y chromosome (XY).
In the case of an individual with a genotype of XO, this means they have one X chromosome and no second sex chromosome. This condition is known as Turner syndrome.
Despite having only one X chromosome, individuals with Turner syndrome are phenotypically female. This is because the presence of a Y chromosome is what typically determines maleness in humans. Without a Y chromosome, an individual develops along a female pathway.
Therefore
Similar Questions
When a gamete that is lacking a sex chromosome due to nondisjunction has fused with a gamete carrying an X chromosome, this type of abnormality leads to _____.Group of answer choicesTriple X syndromeDown syndromeTurner syndromeEdward syndromeKlinefelter syndromeNext
Multiple Choice QuestionA human with X and Y chromosomes will normally develop as a Blank______.Multiple choice question.femalemaleheterosexualbisexual
Nondisjunction of the ______ chromosome during meiosis can produce offspring that are XXX or XXY.Multiple choice question.
Select all of the following that can result from nondisjunction of the X chromosome.Check All That Applypolyploidypolyploidyan XYY malean XYY malean XXX femalean XXX femaleKlinefelter syndromeKlinefelter syndromeTurner syndromeTurner syndrome
Males are _____ for loci on the X and Y chromosomes; that is, they have only a single copy of each gene. Thus, they are never _____ for any X-linked or Y-linked character.Group of answer choicesheterozygous … homozygoushemizygous … heterozygousheterozygous … hemizygous
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