1. Regarding causes of infertility, it’s the case that?a.irregular of failed ovulation is the most common cause of female infertilityb. infertility lies in fertility problems of the male partner in about 12% of cases,c. endonetriosis results from repeated filure to ovulate.d. sperm motility is directly correlated to sperm count2. In comparison to concordance rates for autism in dizygotic twins, monozygtic twins are —– likely to develop?a. significantly lessb. somewhat lessc. significantly mored. somewhat more3.If there is concern about a neural tube defect in the fetus, which of the following tests is least usable?a. ultrasoundb. blood testc. afp assayd. fetoscopy exam4.sally can tie her shoes but only with her motehr’s help.this fact suggests that tying shoes isa. actually beyond sally’s capabilityb. within sally’s znoe of proximal development.c. an innate process that needs only nurturing to unfold.d. too difficult for a sally’s age and should be attempted later.5. Dr. smartz has been intensely engaged in a study of the twins annette and brad for the last two years, you would most accuratley say that Dr. Smartz is engaged in a /ana. gender experiment.b. correlational studyc. cross-lagged method.d. case study.6. marshall has been diagnosed with down syndrome. you realize that marshall’s condition is related toa. alcogol abuse by the father.b. abnormalities of the 21st pair of chromosomes.c. sex-linked chromosomal abnormalities.d. genetic errors in the 24th pair of chromosomes.

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