At the end of meiosis, for each primary spermatocyte, how many functional gametes do human males produce?
At the end of meiosis, for each primary spermatocyte, how many functional gametes do human males...
In gametogenesis in both human males and females: (Select all that apply.) diploid stem cells are the precursors to haploid gametes. secondary spermatocytes and secondary oocytes undergo both meiotic divisions in quick succession to produce mature gametes secondary spermatocytes and secondary oocytes form by meiosis from primary spermatocytes and primary oocytes. stem cells form during embryonic development and divide by mitosis. all primary spermatocytes and primary oocytes divide by meiosis.
3. A diploid cell with eight chromosomes undergoes meiosis. (7 pt) a. How many chromosomes are there in each cell after meiosis I? How many daughter cells are made after meiosis I? Are the daughter cells diploid or haploid? (1.5 pt) How many chromosomes are there in each cell after meiosis ll? How many daughter cells are made after meiosis II? Are the daughter cells diploid or haploid? (1.5 pt) What two mechanisms allow genetic variation among the gametes produced...
8. Suppose a primary oocyte undergoes nondisjuction during meiosis I. If the resulting gametes are crossed with normal sperm. What would be the frequency of males to females expected? a. 1 female : 1 male b. 2 females : 1 male c. 1 female : 2 males d. 1 female : 3 males e. 3 females : 1 male
nondisjunction of the sex chromosomes during meiosis 2 in human males during gametogenesis can result in all of the following complements in a gametes EXCEPT a. no sex chromosomes b. XX c. XY d. YY e. X
20. How many cells are formed at the end of Meiosis I & how many copies of chromosomes does each cell have?_ 21. Is DNA copied before Meiosis II? _ 22. How many cells form at the end of Meiosis II and how many chromosomes do they contain? • 23. Oogenesis ultimately gives rise to (one ovum, four ova) with the Chaploid, diploid) number of chromosomes. 24. A sperm cell is a (gamete, zygote), and is (haploid, diploid). 25. When...
produce haploid gametes; then those gametes can fuse to form a diploid zygote. 35. What is another purpose of meiosis other than stated in the question above? 36. How many cell divisions are involved in meiosis? (two) Do the cells also go through 37. What are homologous chromosomes? Do they contain the same alleles (different 38. How do homologous chromosomes line up on the metaphase plate in meiosis 1? How do 39. Understand the basic steps of meiosis. Please use...
Investigation XI - Meiosis and Gamete Formation Assume an organism has a chromosome number of 6. Further assume that the genes A and a are on two of the chromosomes, B and b on another pair, and C and c on the third pair. Sketch below the arrangements for these chromosomes (1) in a somatic cell such as a skin cell that is undergoing metaphase of mitosis, (2) in a primary spermatocyte in metaphase I and (3) in a secondary...
Primary spermactocyte undergoes DNA replication followed by Meiosis I and II, how many sperm produced?
Two primary spermatocytes from a dog have proceeded through meiosis. How many TOTAL monads would there be from ALL the spermatozoa produced by these two primary spermatocytes?
Non-disjunction errors during meiosis result in several human medical disorders. For each of the following possible disorder indicate if the non-disjunction event could have taken place during maternal meiosis I, maternal meiosis II, paternal meiosis I, or paternal meiosis II by placing a check mark in the appropriate boxes. Maternal Paternal Disorder Meiosis I Meiosis II Meiosis I Meiosis II Down’s Syndrome (Trisomy 21) Kleinfelter Syndrome (XXY) XYY Males