From a piece of blank paper, cut out three sets of four cigar-shaped structures (a total of 12 structures). These will represent chromatids. Be sure each member of a set of four chromatids has the same length and girth. In set one, label two chromatids 'A' and two chromatids 'a.' Cut each of these chromatids about halfway across near their midpoint and slide the two 'A' chromatids together at the cuts to form a single set of attached sister chromatids. Do the same for the 'a' chromatids. In the second set of four chromatids, label two 'B' and two 'b.' Cut and slide these together as you did for the first set, joining the 'B' chromatids together and the 'b' chromatids together. Repeat this process for the third set of chromatids, labeling them as 'D' and 'd.' You now have models for three pairs of homologous chromosomes, for a total of six chromosomes. Align the chromosomes as they might appear at metaphase of mitosis.
9. Mitosis and Meiosis
Mitosis
Struggling with Genetics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following best describes the cells produced by mitosis?
A
They are produced only in gamete formation.
B
They contain half the number of chromosomes as the parent cell.
C
They are always haploid.
D
They are genetically identical to the parent cell.
Verified step by step guidance1
Understand the purpose of mitosis: Mitosis is a type of cell division that results in two daughter cells, each genetically identical to the parent cell.
Recall the chromosome number in mitosis: The daughter cells produced by mitosis maintain the same chromosome number as the parent cell, meaning they are diploid if the parent cell is diploid.
Differentiate mitosis from meiosis: Unlike meiosis, which produces gametes with half the chromosome number (haploid), mitosis produces somatic cells with a full set of chromosomes.
Analyze the options given: The statements about gamete formation, half chromosome number, and haploidy describe meiosis, not mitosis.
Conclude that the best description of cells produced by mitosis is that they are genetically identical to the parent cell, maintaining the same chromosome number.
Related Videos
Related Practice
Textbook Question
403
views
