Multiple Choice
Which of the following processes may separate linked genes during meiosis?
29. Heredity
Overview of Human Genetics
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A person without a Y chromosome will __________.
A
always show male characteristics
B
always show female characteristics
C
be sterile but show male characteristics
D
show both male and female characteristics
Verified step by step guidance1
Understand the role of the Y chromosome in determining sex characteristics. The Y chromosome is typically associated with male characteristics because it contains the SRY gene, which triggers male development.
Recognize that the absence of a Y chromosome usually means the presence of two X chromosomes (XX), which is the typical chromosomal pattern for females.
Consider the genetic and physiological implications of having two X chromosomes. Without the SRY gene, the default development pathway is female.
Acknowledge that individuals without a Y chromosome will not develop male characteristics because the genetic instructions for male development are absent.
Conclude that a person without a Y chromosome will typically show female characteristics, as the genetic and hormonal environment supports female development.
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