Multiple Choice
Chromosomes that do not determine the sex of an individual are called:
2
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3. Extensions to Mendelian Inheritance
Sex Chromosome
Multiple Choice
Which of the following statements about the X and Y chromosomes in humans is correct?
A
The X chromosome contains more genes than the Y chromosome.
B
Both X and Y chromosomes are of equal size and gene content.
C
Females typically have one X and one Y chromosome.
D
The Y chromosome is present in both males and females.
Verified step by step guidance1
Understand the basic differences between the human sex chromosomes: X and Y chromosomes determine biological sex in humans.
Recall that the X chromosome is significantly larger than the Y chromosome and contains many more genes.
Remember that females typically have two X chromosomes (XX), while males have one X and one Y chromosome (XY).
Recognize that the Y chromosome is only present in males and carries genes important for male sex determination and spermatogenesis.
Evaluate each statement based on these facts to identify the correct one: the X chromosome contains more genes than the Y chromosome.
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