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 O 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 cll

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 O 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 cll

Human Biology (MindTap Course List)

11th Edition

ISBN:9781305112100

Author:Cecie Starr, Beverly McMillan

Publisher:Cecie Starr, Beverly McMillan

Chapter18: Cell Reproduction

Section: Chapter Questions

Problem 3CT: Adams maternal and paternal chromosomes have alternate forms of a gene that influences whether a...

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Adams maternal and paternal chromosomes have alternate forms of a gene that influences whether a person is right-handed or left-handed. One form says right and its partner says left. Visualize one of Adams spermatogonia, in which chromosomes are being duplicated prior to meiosis. Visualize what happens to the chromosomes during anaphase I and II. (It might help to use toothpicks as models of the sister chromatids of each chromosome.) What fraction of Adam's sperm will carry the gene for right-handedness? For left-handedness?
A cell (2n = 4) has undergone cell division. Daughter cells have the following chromosome content. Has this cell undergone mitosis, meiosis I, or meiosis II?
Fertilization _____. a. unites the nuclei of a sperm and egg cell b. forms a zygote that has chromosomes of both parents c. usually occurs in an oviduct d. all of the above e. a and b but not c
Which statements are true about meiosis? **Select 2 choice(s)** a) It increases the number of chromosomes. b)It duplicates the number of chromosomes by 2. c)It occurs in an organism's reproductive organs. d)It reduces the number of chromosomes by half. e)It occurs when a single haploid cell divides twice. f)It results in the formation of multiple diploid cells. Please I need a surely answer and a quicker response
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…
Is each of the following cell types haploid or diploid? How does eachcell type relate to the others?a. An oogoniumb. A primary spermatocytec. A spermatidd. A secondary oocytee. A polar body derived from a primary oocyte
Women sometimes develop benign tumors calledovarian teratomas or dermoid cysts in their ovaries.Such a tumor begins when a primary oocyte escapesfrom its prophase I arrest and finishes meiosis Iwithin the ovary. (Normally meiosis I does not finish until the primary oocyte is expelled from theovary upon ovulation.) The secondary oocyte thendevelops as if it were an embryo. Development isdisorganized, however, and results in a tumorcontaining differentiated diploid tissues, includingteeth, hair, bone, muscle, and nerve. If a dermoidcyst forms in a woman whose genotype is Aa, whatare the possible genotypes of the cyst, assuming norecombination?
What is the basis for the tremendous genetic diversity resulting from sexual reproduction?a. independent assortment during gamete productionb. crossing-over and shuffling of linked genes during meiosisc. random fertilizationd. all of these choices
How many sets of chromosomes does each sperm cell carry? How many does each egg cell have? Gametes such as sperm cells and egg cells are said to be (circle one: diploid, haploid). After a sperm and an egg have fused, the new cell is called a , and it is (circle one: diploid, haploid).
Which of the following statements is not correct ? a. Homologous chromosomes are separated during meiosis 1. b. In humans, a primary spermatocyte cell has 92 chromatids c. A null allele is characterized by the complete loss of a gene or its function d. According to the germ line theary all cells (germ line and somatic) cotribute to the next generation e. The lineage of cells that eventually form eggs or sperms is known as germ-line cells
Which of the following cells canundergo meiosis?a. the diploid body cells of an animalb. haploid gametesc. germ cells
explain in details how meiosis leads to genetic variation?? ((while you are answerig plz write the refrence.))