Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
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Chapter 14.3, Problem 2TYK
Summary Introduction
Introduction:
In humans, the chromosomes are diploid, which means there are two sets of chromosomes in the cells. Meiosis is a type of cell division, in which the number of chromosomes is reduced to haploid, which means a single set of chromosomes is present.
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During metaphase 1,—————— align on the metaphase plate.
During interphase,
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DNA is replicated since it roughly doubles from start to finish.
metaphase chromosomes come into existence.
we can visibly see that the kinetochore is formed on the chromosome.
we still do not fully understand what is occurring.
Daughter Cells in interphase
The two new cells are genetically identical to the parent but are smaller and less mature. They will spend anywhere from a few minutes to years in this phase before they continue in the cell cycle.
Chapter 14 Solutions
Principles of Biology
Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Researchers usually treat cells with drugs that...Ch. 14.1 - Refer back to Figure 13.13. How do checkpoint...Ch. 14.1 - A cell that is diploid has two chromosomes. pairs...Ch. 14.1 - In eukaryotes, DNA replication produces sister...Ch. 14.1 - Prob. 3TYKCh. 14.2 - Refer back to the karyotype in Figure 14.1. In...Ch. 14.2 - What are the functions of the three types of...Ch. 14.2 - Prob. 1TYKCh. 14.2 - Prob. 2TYK
Ch. 14.2 - Sister chromatids separate from each other during...Ch. 14.2 - With regard to chromosome composition, how does...Ch. 14.3 - Prob. 1CCCh. 14.3 - Prob. 2CCCh. 14.3 - What is the main reason for meiosis in animals?...Ch. 14.3 - In meiosis I, crossing over occurs during...Ch. 14.3 - Prob. 2TYKCh. 14.3 - Prob. 3TYKCh. 14.4 - Prob. 1CCCh. 14.4 - A chromosome in which the telomere is at one end...Ch. 14.4 - Prob. 2TYKCh. 14.4 - Prob. 3TYKCh. 14 - Prob. 1TYCh. 14 - Prob. 2TYCh. 14 - Checkpoints during the cell cycle are important...Ch. 14 - Prob. 4TYCh. 14 - Prob. 5TYCh. 14 - Prob. 6TYCh. 14 - Prob. 7TYCh. 14 - Prob. 8TYCh. 14 - Prob. 9TYCh. 14 - Prob. 10TYCh. 14 - Distinguish between homologous chromosomes and...Ch. 14 - The Oca2 gene, which influences eye color in...Ch. 14 - PRINCIPLES A principle of biology is that cells...Ch. 14 - Why is it necessary for chromosomes to condense...
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- There are 9 pairs of chromosomes given. This undergoes mitosis and meiosis 1. -Draw the metaphase 1 and anaphase 1.arrow_forwardMetaphase in mitosis is similar to what stage in meiosis? a. prophase I b. prophase II c. metaphase I d. metaphase II e. crossing-overarrow_forwardThe chromosomes become visible under a light microscope during which stage of mitosis? prophase prometaphase metaphase anaphasearrow_forward
- please explain this in a length of a full page as much detail please 1.What are the primary functions of cell division (Mitosis) as compared to Meiosis, how are the daughter cells produced in each process different?arrow_forwardMETAPHASE CELLS:Find and observe a metaphase cell.Sketch or paste it on the rightANAPHASE:Find and observe an anaphase cell.Sketch or paste it on the rightarrow_forwardA cell cannot undergo the metaphase (M) checkpoint during mitosis. This cell is at a higher risk of: Question 27 options: Gene deletion Translocations Cell death Aneuploidy Double stranded DNA breaksarrow_forward
- A drawing of a cell in G2 interphase is provided. The cell contains 4 replicated chromosomes with alleles (H, h, F, f) properly labeled. A set of sister chromotids is labeled.arrow_forwardPaired homologous chromosomes (the tetrad) separate from one another and move towards opposite poles during: Select one: a. Anaphase II b. Anaphase I c. prophase I d. G1arrow_forwardYou normally have 46 chromosomes in each of your somatic cells. How many bivalents are present at metaphase 1?arrow_forward
- Cells normally contain fully or partially replicated chromosomes in all of the following stages of the cell cycle except: G1 G2 prophase metaphase Sarrow_forwardWhich statement is FALSE about interphase? DNA is replicated (copied) during interphase Interphase happens once before meiosis The cell grows during interphase Interphase ONLY happens in mitosis.arrow_forwardHomologous chromosomes are separated from each other during: A) Metaphase II B) Prophase I C) Anaphase II D) Anaphase I E) Metaphase Iarrow_forward
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