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Compare and contrast the oogenesis and spermatogenesis in chicken and drosophila melanogaster
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- Compare and contrast the oogenesis and spermatogenesis in zebrafish and drosophila melanogasterClownfish are protandrous hermaphrodites. Determine whether the following features are encoded by the clownfish genome or are influenced by the proteome in response to the environment. The juvenile clownfish has both male and female immature reproductive organs. Clownfish are able to produce both testosterone and 17-estradiol. Genome encoded Increased estradiol levels lead to increased levels of proteins that promote the growth of female sex organs. Increased testosterone levels lead to increased - levels of proteins that cause male sex organs to develop Proteome influencedCompare and contrast the similarities and differences of the model organism chicken and drosophila's oogenesis and spermatogenesis
- Gametogenesis in mammals is a complex process. When comparing spermatogenesis and oogenesis, indicated whether the follow statements are true or false. After the S phase, both the spermatogonial stem cell and primary oocyte have the same number of double-copy chromosomes. #analyze Question 1 options: True False Both the first polar body and the second polar body have the same number of chromosomes. #analyze Question 2 options: True False After the S phase, both the spermatogonial stem cell and primary oocyte have the same number of double-copy chromosomes. #analyze Question 3 options: True False Both the primary oocyte and the secondary spermatocyte have double-copy chromosomes. #analyze Question 4 options: True FalseIn tabular form, Cite the differences of spermatogenesis on grasshopper and ratNeurulation in model vertebrates and in fly follows soon after gastrulation.Do vertebrates and fly-related invertebrates adopt different strategies forneural development, both at the cellular and molecular level?
- example of how some species switch between asexual and sexual reproduction? Compare and contrast gametogenesis of sperm and eggs in mammals. In your comparison, describe three similarities and three Compare and contrast external versus internal fertilization. Describe at least three major differences. What is meant by 'sperm competition'? What is 'second male advantage'? Describe the case study of Drosophila melanogaster in your text. Describe the difference between oviparous, viviparous, and ovoviviparous. What evolutionary pressures would favor one form over the other? Use your text to identify all the structures in the figures below. Also provide a brief description of each structures function. male reproduction anatomy female reproductive anatomyExplain the chromosomal and genetic control of sex determination in mammals. Clearly establish the difference between the primary and the secondary phases.24) The process of gametogenesis starts with a stem cell in the gonads and produces gametes used in sexual reproduction. For the process of spermatogenesis and oogenesis in mammals, complete the following table: Spermatogenesis Gamete type produced Location occurs Number of haploid cells produced Life-stage that the process begins Life-stage that the process ends Oogenesis
- Describe the role of the SRY gene in mammalian sexual development.The corpus luteum (CL) is critical in the maintenance of pregnancy in the mouse. Explain why? What does it produce and what are the effects? Explain how the CL is maintained from ovulation through gestation.Diagram spermatogenesis in mammals. Begin with a spermatogonium possessing six chromosomes; distinguish between maternal and paternal chromosomes with colored pencils; show distribution of the chromosomes in the two meiotic divisions.