QUESTION 1 Sister chromatids are separated from each other: only in mitosis only in meiosis I only in meiosis I| in both mitosis and meiosis I in both mitosis and meiosis II QUESTION 2 Which of the following is an example of a monosomy in humans? Down syndrome Klinefelter syndrome Trisomy X Turner syndrome OOOO

QUESTION 1 Sister chromatids are separated from each other: only in mitosis only in meiosis I only in meiosis I| in both mitosis and meiosis I in both mitosis and meiosis II QUESTION 2 Which of the following is an example of a monosomy in humans? Down syndrome Klinefelter syndrome Trisomy X Turner syndrome OOOO

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter11: Meiosis: The Cellular Basis Of Sexual Reproduction

Section: Chapter Questions

Problem 1TYK: The chromosome constitution number of this individual is 2=6. This drawing represents: a. mitotic...

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QUESTION 36 Which of the following occurs during meiosis in eukaryotic spermatogonia? A. One diploid cell becomes two diploid somatic cells. B. One haploid cell becomes two haploid somatic cells. C. One haploid cell becomes one diploid gamete. D. One diploid gamete becomes two haploid gametes. E. One diploid cell becomes four haploid gametes.
Question 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 20 Which of the following statements regarding nondisjonction is incorrect? 1. could result in gametes with an extra chromosome 2. It occurs only in mitosis . 3. It can occur when sister chromatids do not separate as expected 4. It can occur when homologous chromosomes do not separate as expected
Question 2 If a certain species has a DNA content of 5 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a diploid cell (from the same species) in mitotic prophase? Explain your reasoning. Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.
Question 3 If a certain species has a DNA content of 12 picograms in each diploid cell's nucleus when the cell in in G1 of the cell cycle, what would be the expected DNA content (in picograms) of a triploid cell (from the same species) in mitotic prophase? Consider ploidy changes and/or chromosome form changes, if applicable, when explaining your reasoning.
Question 1 What are the haploid genotypes of the gametes and frequencies/proportions of those gametes that can be formed in individuals of each of the following diploid genotypes? (DON’T do a cross. Just predict the different haploid gamete genotypes that could be produced by each diploid genotype below.) Proportions can be expressed in ratio form or fractional form. Dd Ee ff GG Mm Nn Rr ZZ
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 complex
QUESTION 39 Which of the following is a benefit of sexual reproduction? A. Offspring are genetically identical to the parents. B. Offspring differ genetically from themselves and from their parents. C. There is a possibility of mutations that lead to disease. D. All of the above.
Humans cells normally have 46 chromosomes (2n). Specify the number of chromosomes present at each of the following stages. In your answers, determine diploid or haploid number of chromosomes and the count the chromatids as chromosomes. For example: anaphase I of meiosis: 46 (2n) = 92 a. metaphase I of meiosis b. metaphase of mitosis c. telophase I of meiosis d. telophase II of meiosis
If a diploid organism has 14 chromosomes (2n=14) a. How many chromosomes will its gametes have? b. After meiosis I during gamete formation, how many chromosomes are in each daughter cell? c. After meiosis I during gamete formation, how many chromatids are in each daughter cell?
I do not how to answer question a from my biology packet. EXAMPLE 2: The parents in the family above produce another son, this time with two Y chromosomes and normal tooth enamel. In which parent did the nondisjunction occur? Explain and/or illustrate. Did nondisjunction occur at meiosis I or II? Explain and/or illustrate. What sex chromosomes are in the child’s somatic cells?
Writing a summary: Your younger sister comes barging into your room crying something about, “meiosis? mitosis? chromosomes? chromatids? genes? alleles? What does it all mean?” Being the great older sibling that you are, you agree to make a study guide for her that explains all the terms, how they are related, and why they are important. Your study guide includes a written summary and your hand drawn diagrams to help put all the terms into context.