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Quiz 11 - Quiz 11
Human Biology (BIOL 115)
Illinois Institute of Technology
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A photograph of cellular chromosomes taken just prior to division and arranged in pairs is called: A. micrograph B. chromograph C. karyotype D. photochromograph
- Nondisjunction of the sex chromosome in a woman (assume normal meiosis in male) could lead to a child with the genotype of: A. XO B. XXX C. XXY D. All of the choices are correct.
- If the sequence ABCDEFG represents a series of genes in a chromosome, then ABCDCDEFG represents which type of chromosome mutation? A. translocation B. inversion C. deletion D. duplication
A centromere is: A. point of attachment for sister chromatids B. identical part of a chromosome C. extranuclear cylindrical organelle D. origin of spindle apparatus
In which stage are the chromosomes lined up on the equator during mitosis? A. interphase B. prophase C. metaphase D. anaphase E. telophase
6. If a person has both alleles for the dominant trait, his genotype is represented as:
A. 2 capital letters. B. 1 capital and 1 lowercase letter C. 2 lowercase letters.
7. A heterozygous brown bull mates with a white cow. (Brown is the dominant trait). What are the
expected phenotype ratios? A. 100% brown B. 100% white C. 50% brown and 50 % white D. 50% brown and 50% tan
8. In a cross of a homozygous dominant parent and a homozygous recessive parent, what is the ratio
of offspring that will exhibit the recessive phenotype? A. 0. B. 1/4. C. 1/2. D. 3/4. E. 1. 9. An autosomal recessive disorder that affects nervous system development due to the lack of the enzyme needed for normal metabolism of phenylalanine is: A. Cri du chat B. Tay-Sachs disease C. Sickle-cell disease D. PKU (phenylketonuria)
Quiz 11 - Quiz 11
Course: Human Biology (BIOL 115)
University: Illinois Institute of Technology
