Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 13QP
A cell from a human female has just undergone mitosis. For unknown reasons, the centromere of chromosome 7 failed to divide. Describe the chromosomal contents of the daughter cells.
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In meiosis, each centromere has a spindle fiber attached only to one side. In mitosis, each centromere has a spindle attached to how many sides?
If a rabbit has 22 chromosomes in each of its body cells, how many chromosomes will be in each daughter cell after mitosis?
Mitotic nondisjunction can occur, particularly in tumor cells.
Assume a single nondisjunction event involving the X chromosome occurs in a cell undergoing mitosis in a human female.
First, consider the daughter cell with the smaller number of chromosomes:
How many total chromosomes will this cell have?
How many X chromosomes will this cell have?
Next, consider the daughter cell with the larger number of chromosomes:
How many total chromosomes will this cell have?
How many X chromosomes will this cell have?
Chapter 2 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 2 - Prob. 1CSCh. 2 - Prob. 2CSCh. 2 - Prob. 3CSCh. 2 - Cell Structure Reflects Function What advantages...Ch. 2 - Assign a function(s) to the following cellular...Ch. 2 - How many autosomes are present in a body cell of a...Ch. 2 - Define the following terms: a. chromosome b....Ch. 2 - Human haploid gametes (sperm and eggs) contain: a....Ch. 2 - Prob. 6QPCh. 2 - Prob. 7QP
Ch. 2 - In the cell cycle, at which stages do two...Ch. 2 - Does the cell cycle refer to mitosis as well as...Ch. 2 - It is possible that an alternative mechanism for...Ch. 2 - Identify the stages of mitosis, and describe the...Ch. 2 - Why is cell furrowing important in cell division?...Ch. 2 - A cell from a human female has just undergone...Ch. 2 - During which phases of the mitotic cycle would the...Ch. 2 - Describe the critical events of mitosis that are...Ch. 2 - Mitosis occurs daily in a human being. What type...Ch. 2 - Speculate on how the Hayflick limit may lead to...Ch. 2 - How can errors in the cell cycle lead to cancer in...Ch. 2 - List the differences between mitosis and meiosis...Ch. 2 - In the following diagram, designate each daughter...Ch. 2 - Which of the following statements is not true in...Ch. 2 - Match the phase of cell division with the...Ch. 2 - A cell has a diploid number of 6 (2n = 6). a. Draw...Ch. 2 - A cell (2n = 4) has undergone cell division....Ch. 2 - We are following the progress of human chromosome...Ch. 2 - What is physically exchanged during crossing over?Ch. 2 - Compare meiotic anaphase I with meiotic anaphase...Ch. 2 - Provide two reasons why meiosis leads to genetic...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Define the following terms: a. chromosome b. chromatinarrow_forwardVariations in Chromosome NumberAneuploidy Describe the process of nondisjunction and explain when it takes place during cell division.arrow_forwardSuppose you have a way of measuring the amount of DNA in a single cell during the cell cycle. You first measure the amount during the G1 phase. At what points during the remainder of the cycle would you predict changes in the amount of DNA per cell?arrow_forward
- How many chromosomes are there in each stage of mitosis in an animal like Drosophila?arrow_forwardSuppose a centromere does not split during anaphase. Describethe chromosomes in the daughter cells.arrow_forwardA human skin cell has 46 chromosomes. After that skin cell goes through mitosis, how many chromosomes will each of the new skin cells have?arrow_forward
- A son and his mother both have an inherited disorder that affects the nervous system. How would you determine if the disorder is caused by a change inchromosome structure, such as a deletion or duplication?arrow_forwardWith regard to thickness and length, what do you think chromosomes would look like if you microscopically examined them during interphase? How would that compare with their appearanceduring metaphase?arrow_forwardA somatic cell has 46 chromosomes aligned at metaphase. How many chromosomes are present at anaphase, immediately after the centromeres have split?arrow_forward
- a. Manually, using a pencil, draw a cell in anaphase II from an organism in which 2n = 2 and each chromosome is metacentric. b. Given that each G1 nucleus from this organism contains 16 picograms of DNA, how many picograms of chromosomal DNA would you expect in the cell shown here?arrow_forwardIf the S phase was eliminated from the cell cycle, the daughter cells wouldarrow_forwardHumans have 46 chromosomes in each somatic cell. a. How many chromosomes does a child receive from its father?arrow_forward
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