AUA MED 1 -- Foundations – Embryology – Questions With Complete Solutions

How long does the blastocyst stage last? correct answer: first two weeks When is the fetal period of development? correct answer: week 9 to birth What is the the embryonic period characterized by? correct answer: development of structures (organs) What is the the fetal period characterized by? correct answer: maturation and growth of tissues and organs Where do primordial germ cells originate? Where do they migrate to? correct answer: appear in the wall of the yolk sac and migrate to indifferent gonad What is gametogenesis? correct answer: the process in which cells undergo meiosis to form gametes. What is a gamete? correct answer: a fully matured germ cell What is the male gonad? correct answer: testes What is the male gamete? correct answer: sperm What is the female gonad? correct answer: ovary What is the female gamete? correct answer: ovum What are the parts of the uterus? correct answer: fundus, body, cervix What occurs in Meosis I? correct answer: -homologous chromosomes pair (synapsis) -exchange genetic material (segment of DNA) What occurs in Meosis II? correct answer: -no replication of DNA -disjunction occurs with chromosome splitting -haploid number of chromosomes with half the amount of DNA of a normal somatic cell When does spermatogenesis begin? correct answer: at puberty