Review An S 331
Popular in Domestic Animal Reproduction
Popular in Animal Science and Zoology
This 2 page Bundle was uploaded by abirkenholtz on Thursday April 21, 2016. The Bundle belongs to An S 331 at Iowa State University taught by Dr. Youngs in Spring 2016. Since its upload, it has received 24 views. For similar materials see Domestic Animal Reproduction in Animal Science and Zoology at Iowa State University.
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Date Created: 04/21/16
ANS 331 Review (01-20-16) Vocabulary: preformationists non-disjunction epigenists polar body law of segregation translocation law of independent assortment genotypic sex sex-linked traits phenotypic sex Holandric traits Bridges genic balance theory of somatic cell sex determination homologous chromosomes hermaphrodite diploid intersex gamete sex reversed haploid zygote microchromosomes embryo hybridization conceptus autosomes differentiate sex chromosomes blastomere homogametic sex preimplantation heterogametic sex blasto- SRY gene blastulation DNA transcription factors blastocyst DMRT1 trophoblast cells barr body inner cell mass cells mosaic blastocoele cavity genotypes embryonic stem cells zygote pluripotent cell chimera totipotent cell androgenesis gastrulation gynogenesis endoderm parthenogenesis mesoderm aneuploidy ectoderm trisomy 21 primordial germ cells Turner’s syndrome histotroph “superfemales” placenta Kleinfelter’s syndrome placentation Review: examples of: diploid cell: haploid cell: hybridization: homogametic sex: heterogametic sex: What is the purpose behind sperm sexing? What does the SRY gene do? What does the DMRT1 gene do? Chimera vs mosaic: Phenotypic sex vs. genotypic sex: Hermaphrodite vs. intesex vs. sex-reversed: 1-cell fertilized egg = What 2 things happen to cells during embryonic development 1. _______________________________________ 2. _______________________________________ What are the 3 parts of a blastocyst and what is their function? 1. ________________________________________________________ 2. ________________________________________________________ 3. ________________________________________________________ What are the 3 primary embryonic germ cell layers and what do they give rise to? 1. ________________________________________________________ 2. ________________________________________________________ 3. ________________________________________________________ Histotroph:
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