Question 25 Listen A unicorn has 11 pairs of chromosomes. How many sister chromatids will it have at metaphase of meiosis 2? a) 22 b) 44 c) 11 d) 2
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Genetics Question 25
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- QUESTION 34 What would be predicted to be the most common cause of chromosome translocations in Meiosis? A. Incorrect resolution of chiasmata in Meiosis II B. single point mutations during Meiosis II C. nondisjunction events resulting from incorrect resolution of chiasmata in Meiosis I D. improper cleavage of the cohesion complexQuestion 4 Consider a diploid organism with a diploid number of 30. Show your work and/or explain logic on all parts. a. How many total chromatids will be present in a typical cell at mitotic metaphase? b. How many tetrads are present in a metaphase I cell of meiosis? c. How many dyads are present in a metaphase II cell in meiosis? d. How many monads are expected in each product cell at the end of meiosis II?QUESTION 8 Match the stages of mitotic cell division to the descriptions of those stages. ]chromosomes attach to spindle fibers across the middle of the cell chromosomes are not yet duplicated so chromosomes only look like a line, Jonly one pair of centrioles in cell A. Cytokinesis cell membrane is pinching in forming a peanut-shaped cell, daughter chromosomes reach the poles and new nuclear membranes are forming around them B. Anaphase C. Telophase D. Early Interphase the nuclear membrane is breaking down, chromosomes are condensing, centrioles are building microtubule "highways" (spindle fibers) E. Prophase chromosomes are duplicated so chromosomes look like an "X", two pairs of centrioles and double the amount of organelles fill the cell F. Late Interphase cell is dividing into two identical cells G. Metaphase daughter chromosomes are beginning their migration to the poles on spindle fibers
- Question 5 If you are looking at the chromosomes in a dividing cell and notice that there are groups of four chromatids laying side-by-side waiting to be separated, you would know that the cell must be in Metaphase of Meiosis I S Phase of the cell cycle One of the phases of Mitosis Prophase of Meiosis IIQuestion 4 Review fertilization of life cycle. The somatic cells of human bodies are O diploid (2N) O haploid (N)QUESTION 10 What stage(s) of meiosis does nondisjunction take place in? O A. Early and Late Interphase B. Prophase I C. Metaphase I or Metaphase II D. Anaphase I or Anaphase II
- Question 44 Examine the diagram that shows the late stages of telophase during mitosis. Which statement describes what is happening? O The plant cell pinches in half to form two new cells. O The animal cell pinches in half to form two new cells. O The plant cell forms a cell plate dividing the cytoplasm to form two new cells. O The animal cell forms e cell plate dividing the cytoplasm to form Lwo new cells. * Previous ) 耳QUESTION 5 Assuming mitosis is divided into prophase, prometaphase, metaphase, anaphase, and telophase, identify the events that take place in metaphase. The chromosomes move toward the equator by action of the kinetochore microtubules. The nucleolus disappears. U Centrioles replicate. The nuclear envelope disappears. Microtubules attach to kinetochores. All chromosomes are aligned on the metaphase plate. Sister chromatids split. Chromosomes condense. Spindle fibers form. Centrioles are migrating to opposite sides of the nucleus. QUESTION 6 Assuming mitosis is divided into prophase, prometaphase, metaphase, anaphase, and telophase, identify the events that take place in anaphase. Centrioles are migrating to opposite sides of the nucleus. Chromosomes decondense. The nuclear envelope reforms. The chromosomes move toward the equator by action of the kinetochore microtubules. All chromosomes are aligned on the metaphase plate. The nucleolus disappears. Sister chromatids split. Kinetochore…QUESTION 25 To visualize and identify meiotic cells at metaphase I with a microscope, what would you look for? O a. sister chromatids of a replicated chromosome grouped at the poles O b. individual chromosomes all at the cell's center O c. an uninterrupted spindle array Od. pairs of homologous chromosomes all aligned at the cell's center
- Question #5 Stages of MeiosisPlease help me for part a and b, thank you so much!Question 9 Match the following with the term that best describes them Holds chromatids together in the middle ✓ DNA complexed with basic histone proteins ✓ Chromosome arrangement of the organism ✓ Noodle-like structures that appear clearly after prophase stage of mitosis A. karyotype B. chromatin C. chromosomes D. centromereQUESTION 13 Assume that a diploid cell (2N=8) contains 4 pairs of chromosomes (3 pairs of autosomes and 1 pair of sex chromosomes) designated as 1m, 1p, 2m, 2p. 3m, 3p, Xm, and Xp where "m" stands for maternal origin and "p" stands for paternal origin. If nondisiunction for the Xm chromosome ocurred in meiosis I, what will be a likely chromosomal composition of the resulting 2 daughter cells at the end of this cycle? O 1m, 2p, 3p, Xm, Xp AND 1p, 2m, 3m, Xm, Xp O 1m, 2p, 3p, Xm, Xp AND 1р, 2m, 3m O im, 1m, 2p, 2p, 3p, 3p, Xm, Xm, Xp, Xp AND 1p, 1p, 2m, 2m, 3m, 3m, Xm, Xm, Xp, Xp O 1m, 1m, 2p, 2p, 3p, 3p, Xm, Xm, Xp, Xp AND 1p, 1p, 2m, 2m, 3m, 3m