Explain step by step. Match the species with the way they determine the sex of an embryo (each)Mammalsa. the Y chromosome plays no role in sex determination, butthe number of X chromosomes appears to determine thesexual phenotype.b. fertilized, diploid eggs develop into females, whileunfertilized, haploid eggs become malesFliesc. the male has the two similar sex chromosomes (ZZ) andthe female has the unmatched pair (ZW).Birdsd. the presence of either a second X chromosome or a Ychromosome determines whether the embryo will befemale (XX) or male (XY)Ants

Different mechanisms govern sex in different organisms. Some organisms involve two different kinds…

Answered: Match the species with the way they…

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter7: Development And Sex Determination

Section: Chapter Questions

Problem 10QP: Mutations Can Uncouple Chromosomal Sex from Phenotypic Sex Give an example of a situation in which...

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You are studying a new species of insect. You identify the following about sex determination in this species: . Their cells contain chromosomes, but no sex chromosomes • Individuals who produce sperm have half the number of chromosomes than individuals who produce eggs . Changes in the environment do not affect sex determination Given this information, you predict that this species uses sex determination. O XX/XO O parthenogenesis O non-chromosomal O haplo-diploid
Male Female Eggs Sperm Possible Offspring Z W ZW 1. Write the male and female sex chromosomes. 2. Explain the mechanism of sex determining of birds? 3. Compare the sex determination system in birds and humans
Assuming that such a fly would be viable, what would be the sexof a fruit fly with the following chromosomal composition?A. One X chromosome and two sets of autosomesB. Two X chromosomes, one Y chromosome, and two sets ofautosomesC. Two X chromosomes and four sets of autosomesD. Four X chromosomes, two Y chromosomes, and four sets ofautosomes
Mutations Can Uncouple Chromosomal Sex from Phenotypic Sex Give an example of a situation in which genetic sex, gonadal sex, and phenotypic sex do not coincide. Explain why they do not coincide.
The Human Reproductive System Discuss and compare the products of meiosis in human females and males. How many functional gametes are produced from the daughter cells in each sex?
Briefly explain why mature gametes carry only one set of chromosomes.
Which of the following cells canundergo meiosis?a. the diploid body cells of an animalb. haploid gametesc. germ cells
. In a certain strain of turkeys, unfertilized eggs sometimes develop parthenogenetically to produce diploidoffspring. (Females have ZW and males have ZZ sexchromosomes. Assume that WW cells are inviable.)What distribution of sexes would you expect to seeamong the parthenogenetic offspring according toeach of the following models for how parthenogenesisoccurs?a. The eggs develop from oogonial cells that neverundergo meiosis.b. The eggs go all the way through meiosis and thenduplicate their chromosomes to become diploid.c. The eggs go through meiosis I, and the chromatidsseparate to create diploidy.d. The egg goes all the way through meiosis and thenfuses at random with one of its three polar bodies(this scenario assumes the first polar body goesthrough meiosis II).
Spermatogoniaa. are haploid germ cells.b. are mature haploid cells.c. are male gametes. d. have flagella. e. are diploid germ cells.
Choose the best matching phrase in the right columnfor each of the terms in the left column.a. meiosis 1. X and Yb. gametes 2. chromosomes that do not differbetween the sexesc. karyotype 3. one of the two identical halvesof a replicated chromosomed. mitosis 4. microtubule organizing centersat the spindle polese. interphase 5. cells in the testes that undergomeiosisf. syncytium 6. division of the cytoplasmg. synapsis 7. haploid germ cells that uniteat fertilizationh. sex chromosomes 8. an animal cell containing morethan one nucleusi. cytokinesis 9. pairing of homologouschromosomesj. anaphase 10. one diploid cell gives rise to twodiploid cellsk. chromatid 11. the array of chromosomes in agiven celll. autosomes 12. the part of the cell cycle duringwhich the chromosomes are notvisiblem. centromere 13. one diploid cell gives rise to fourhaploid cellsn. centrosomes 14. cell produced by meiosis thatdoes not become a gameteo. polar body 15. the time during mitosis whensister chromatids…
Which of these are true statements about meiosis? Select all that apply O It results in cells that are genetically identical to the original cell It results in cells that are genetically different from each other and the original cell O It produces cells needed for sexual reproduction O It is the process by which multicellular organisms grow and develop O It produces cells with half as many chromosomes as the original cell
ry of an orgahism ( Choose ) of the pairs of chromosomes from a cell diploid karyotype n each pair autosomes letermine the sex of the individual haploid sex chromosomes omes (2N) homologous chromosomes, or homologs fife cycle

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