Make sure you label your answers (e.g. 12a. answer, 12b. answer, etc.); otherwise, there will be no credit. 12. For the question below, you determine that the cells of species "Z" contain a total of 24 chromosomes (diploid number: 2N=24). Indicate how many chromosomes and chromatids are present in each cell at the following stages of MITOSIS, MEIOSIS or GAMETOGENESIS by putting the answer letter. a. Prophase II of meiosis b. Primary spermatocyte c. ovum d. anaphase of mitosis e. spermatogonium f. spermatid g. First polar body h. anaphase II of meiosis Answer letters: A. 6 chromosomes, 12 chromatids B. 24 chromosomes, 24 chromatids C. 24 chromosomes, 48 chromatids D. 48 chromosomes, 48 chromatids E. 6 chromosomes, 6 chromatids F. 12 chromosomes, 24 chromatids G. 12 chromosomes, 12 chromatids
Added by Angela M.
Close
Step 1
Prophase II of meiosis: At this stage, the cell has already undergone meiosis I, so it has half the number of chromosomes (haploid) but each chromosome still has two sister chromatids. Show more…
Show all steps
Your feedback will help us improve your experience
Adi S and 57 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Evelyn D.
An animal with a diploid number of 36 chromosomes will have 18 gametes and 36 chromosomes in its somatic cells. Homologous chromosomes synapse and crossing over occurs during prophase I of meiosis only. At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype? Metaphase. Which of the following is true concerning cancer cells? They do not exhibit anchorage-independent inhibition. DNA is replicated at the interphase phase of the cell cycle. A checkpoint during the cell cycle is most likely to check to make sure the cell cycle process is error-free.
Kerissa B.
Which of the following happens after meiosis and cytokinesis have been completed? Select one: a. Homologous chromosomes are separated b. The chromosome number per cell is conserved c. Identical sister chromatids are separated d. Four daughter cells are formed e. Two of the above The exchange of certain genes on non-sister chromatids takes place during: Select one: a. Prophase II b. Anaphase II c. Metaphase I d. Prophase I e. Metaphase II A group of cells is assayed for DNA content immediately preceding mitosis and is found to have an average of 12 pg of DNA per nucleus. __ picograms would be found at the end of G1, __ picograms would be found at the end of S, and ___ picograms would be found in a cell after meiosis I. Select one: a. 6: 12: 6 b. 12: 6: 3 c. 12: 6: 12 d. 6: 24: 3 e. 6: 12: 3
Adi S.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD