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7 Cards in this Set
- Front
- Back
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Women with X-linked disorders always pass the genes for the disorder to ____ while men with X-linked disorders always pass the genes for the disorder to ____
A. Only their daughters; only their daughters B. Both their daughters and sons; only their sons C. Both their daughter and sons; only their daughters D. Both their daughters and sons; their daughters and sons |
Both their daughter and sons; only their daughters
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Determine the sequence of genes A, B, C, and D if the distance from A-C is 17 units, A-B 25 units, A-D is 37 units, B-C is 8 units and B-D is 12 units.
A. A, B, C, D B. B, C, A, D C. A, C, B, D D. D, C, A, B |
A, C, B, D
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Which of the following human genetic disorders is NOT caused by nondisjunction?
A. Down's syndrome B. Turner's syndrome C. Klinefelter syndrome D. Fragile X syndrome |
Fragile X syndrome
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Human male has ___ chromosome with ___ sex chromosomes
A. 46, XY B. 48, XY C. 46, XX |
46, XY
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X-linkage was discovered for the first time in
a. aNTS b. mICE c. cHICKENS d. fRUIT FLIES e. hUMANS |
Fruit flies
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Which statement is NOT true about X-linked characteristics?
A. More males than fremales are affected B. If a female has the characteristic, all her sons will show it C. Females can be carriers of the gene without showing it D. Males can have two copies of the alleles for the trait, but females can only have one |
Males can have two copies of the alleles for the trait, but females can only have one
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Not all sexual organisms utilize XX and XY system to determine the sex of offspring........
A. It is not always necessary to produce an equal number of males and females for a population to survive B. Some organisms apparently can maintain undifferentiated tissues and the potential to become either sex C. A complex cascade of developmental changes can be triggered D. All of the choices |
All of the choices
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