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1 | |
Sperm fertilizes an egg, forming a zygote in the |
| | A) | ovary |
| | B) | fallopian tube |
| | C) | uterus |
| | D) | cervix |
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2 | |
In females the onset of the menstrual cycle is stimulated by the secretion of a hormone from the_______. |
| | A) | ovary |
| | B) | thyroid gland |
| | C) | pituitary gland |
| | D) | adrenal gland |
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3 | |
__________ triggers a chemical reaction that inhibits the ripening of more eggs, and also ________________. |
| | A) | menstruation; prepares uterus for implantation |
| | B) | fertilization; prepares uterus for implantation |
| | C) | ovulation; sheds the lining of the uterus |
| | D) | ovulation; prepares the uterus for a potential zygote |
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4 | |
Dizygotic twins: |
| | A) | occur when 2 eggs are each fertilized by separate sperm |
| | B) | have genes that are no more alike than those of siblings born of the same parents, but at different times |
| | C) | Are less frequent than monozygotic twins |
| | D) | A and B |
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5 | |
Which of the following are suspected to adversely affect a couple's fertility? |
| | A) | sexually transmitted diseases |
| | B) | intra uterine devices |
| | C) | endometriosis |
| | D) | all of the above |
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6 | |
Gamete intrafallopian transfer is |
| | A) | fertilization of egg with sperm in a dish |
| | B) | the fertilized egg is transferred into the fallopian tube |
| | C) | freezing embryos for future use |
| | D) | sperm and egg are placed in the fallopian tube with the intent of achieving fertilization |
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7 | |
Bridget's curly red hair and blue eyes are an example of her |
| | A) | phenotype |
| | B) | genotype |
| | C) | RNA |
| | D) | DNA |
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8 | |
Mendel's explanation of why blue eyed babies occasionally appear in typically brown eyed families is called the ______________. |
| | A) | principle of segregation |
| | B) | incomplete dominance |
| | C) | mutations |
| | D) | codominance |
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9 | |
Down Syndrome: |
| | A) | occurs less frequently as the mother ages. |
| | B) | produces distinct facial features, small hands, large tongue, mental retardation, and heart defects. |
| | C) | Is caused by deviation of the 10th pair of chromosomes |
| | D) | B and C |
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10 | |
Disorders related to chromosome defect include: |
| | A) | Klinefelter syndrome |
| | B) | Down Syndrome |
| | C) | Turner Syndrome |
| | D) | All of the above |
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11 | |
_________________ is a genetic disorder that causes a malfunction of the exocrine glands, including tears, sweat, mucus and saliva. Thick mucus makes breathing and digestion difficult. |
| | A) | Tay-Sachs disease |
| | B) | PKU |
| | C) | Cystic fibrosis |
| | D) | Sickle cell anemia |
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12 | |
Hemophilia is a disorder that is characterized as: |
| | A) | fragile X syndrome |
| | B) | sex linked inheritance |
| | C) | genetic disorder |
| | D) | none of the above |
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13 | |
Which of the following statements is true regarding the goals of the Human Genome Project? |
| | A) | advanced DNA sequencing |
| | B) | to determine if there are specific disorders in a family to determine health insurance benefits |
| | C) | continued investigation of ethical, social and legal aspects of the project |
| | D) | a and c |
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14 | |
_______________ is a birth defect that may occur as a result of the interaction of several genes, with possible environmental involvement. The incidence of this disorder may be reduced with increased intake of folic acid during pregnancy. |
| | A) | PKU |
| | B) | Spina Bifida |
| | C) | Hemophilia |
| | D) | CF |
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15 | |
A female is produced by the following combination of sex chromosomes: |
| | A) | x from egg, y from sperm |
| | B) | y from egg, y from sperm |
| | C) | x from egg, x from sperm |
| | D) | y from egg, x from sperm |
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2002 McGraw-Hill Higher Education