Human Genetics: Chromosomes, Sex Determination, and Blood Types
Explore the world of human genetics with questions on sex chromosome complement, sex determination, inheritance patterns, and blood types. Learn about the role of chromosomes in determining sex, the inheritance of blood types, and genetic conditions like Klinefelter syndrome and Turner syndrome.
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Biology for a Changing World, 2e Clicker Questions Chapter 12
What is the typical complement of sex chromosomes in a human male? A. two X chromosomes B. two Y chromosomes C. two X chromosomes and one Y chromosome D. one X chromosome and one Y chromosome
Sex determination is caused by A. genetic and anatomical aspects. B. behavioral aspects. C. hormonal aspects. D. all of the above
TRUE or FALSE? The Y chromosome does not have a homologous partner, which means that the Y chromosome that a son inherits is almost identical to his father s. A. TRUE B. FALSE
Why are sex-linked conditions more common in men than in women? A. Men need inherit only one copy of the recessive allele for the condition to be expressed. B. Men acquire two copies of the defective gene during fertilization. C. Women simply do not develop the disease regardless of their genetic makeup. D. Sex chromosomes are more active in men than in women.
Isabella has only one X chromosome. This condition is referred to as A. mosaicism. B. Klinefelter s syndrome. C. polyploidy syndrome. D. Turner s syndrome.
Abani crosses a red carnation with a white carnation, which produces pink carnations. He is puzzled, but you point out that _______ is responsible for this mystery. A. codominance B. complete dominance C. incomplete dominance D. polygenic inheritance
How is it possible that people can have type A, B, AB, or O blood? In other words, how is it possible that there are more than two alleles for this trait? A. polygenic inheritance. B. incomplete dominance. C. There can be more than two alleles in a population. D. An individual can have more than two alleles.
A person who has type AB blood cannot accept _______ blood. A. type A B. type B C. type O D. s/he can accept type A, B, AB, or O
The expression of both alleles for a trait in a heterozygous individual, such as a person with type AB blood, illustrates A. incomplete dominance. B. codominance. C. polygenic inheritance. D. incomplete dominance.
Heart disease can be caused by genetic factors, but it is also influenced by environmental factors such as diet and exercise. Heart disease is an example of A. multifactorial inheritance. B. codominance. C. polygenic inheritance. D. incomplete dominance.
Traits such as height, which is influenced by multiple genes, is considered a A. homozygous dominant trait. B. polygenic trait. C. codominant trait. D. incomplete trait.
If you inherited a predisposition to skin cancer, you can reduce your risk by limiting exposure to UV radiation. This is an example of A. multifactorial inheritance. B. codominant inheritance. C. polygenic inheritance. D. incomplete inheritance.
