long chromosome of somatic cells of somatic cells gene of germ cells of germ cells gene of either somatic or germ cells gene X MISALIGNMENT illustrated may affect the next generation if it occurs du UNEQUAL CROSSING-OVER short chromosome gene homologo chromosom
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- Match the letter of the term with its description. Centriole Chromosome Chromatid Diploid DNA Gene Haploid Description makes spindle fibers is the hereditary material in chromosomes a cell containing two complete sets of chromosomes a cell containing a single set of unpaired chromosomes code for a specific trait (e.g. ability to roll the tongue) one of a pair of identical chromosomes formed by the replication of a single chromosome any of several thread-like structures, made of chromatinA sexually reproducing organism has the following phenotype DdEeAaTt. The D and E loci are on the same arm of a metacentric chromosome in the cis configuration. The A locus is on the long arm of an acrocentric chromosome and the T locus is on a telocentric chromosome. There are no other chromosomes. Show a diagram of the cell in metaphase of mitosis and the result of mitosis.Select true or false for each of the following statements regarding metaphase I. Homologous chromosomes are connected only at the centromeres. Answertruefalse Homologous chromosomes are aligned at the metaphase plate. Answertruefalse The paternal chromosomes are aligned on one side of the metaphase plate and the maternal chromosomes are aligned at the other. Answertruefalse In a cell with 4 chromosome pairs, there are 16 different ways to align the tetrads. Answertruefalse Homologous chromosomes are independently assorted. Answertruefalse
- Which of the following sentences is CORRECT: O Nuclear envelopes re-form in anaphase II Nondisjunction can occur in the meiosis I or meiosis II, or during mitosis During metaphase I the chromosomes move to the opposite poles of the cells is the site of phospholipids, lipids, and steroid synthesis O golgi appratus rough endoplasmic reticulum smooth endoplasmic reticulumA sexually reproducing organism has the following phenotype DdEeAaTt: The D and E loci are on the same arm of a metacentric chromosome in cis configuration. The A locus is on the long arm of an acrocentric chromosome and the T locus is on a telocentric chromosome. There are no other chromosomes. Using diagrams, show a cell at metaphase of mitosis and show the results of mitosis. Ensure you show the location of the gene loci on the different chromosomes.A somatic cell has the genotype DdEe. All chromosomes in this organism are metacentric. Show metaphase and the results of mitosis if the D and E locus are linked on the same chromosome in trans configuration. A sexually reproducing organism has the following phenotype DdEeAaTt: The D and E loci are on the same arm of a metacentric chromosome in cis configuration. The A locus is on the long arm of an acrocentric chromosome and the T locus is on a telocentric chromosome. 2.1. What is the haploid number of this organism? 2.2. Using diagrams show a ceii at metaphase of mitosis and show the results of mitosis.
- Mitosis Meiosis Definition Prophase Metaphase Anaphase Telophase Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II Steps of each phase Number of cell divisions Number of cells produced *How many chromosomes per 46 daughter cell? * Mitosis starts with 46 chromosomes in each parent cell, and then ends with 46 chromosomes in each daughter cell. Cells divide onl once in Mitosis, but they divide twice during Meiosis, so we should end with half as many chromosomes in Meiosis vs Mitosis.Truffles (Tuber borchi) have 2n=8 chromosomes. For the mitotic and meiotic stages below, draw the chromosomes and chromatids, and give the number of homologous pairs, chromosomes, and chromatids present. Be sure to differentiate homologous chromosomes by using size, shape, or other labeling mechanism. Metaphase of mitosis ( # homologous pairs # chromosomes # chromatids Anaphase of meiosis II – draw and count chromosomes for only 1 cell ( # homologous pairs # chromosomes # chromatidsA diploid cell undergoes meiosis to form the four gametes shown below. H OHhQq OhQ q Part 1 What is the genotype of the diploid cell? Hq OHHhhQQqq 99 HH H QQ Part 2 Arrange the chromosomes for the diploid cell as they must have lined up during metaphase I of meiosis in order to make the gametes shown above. The vertical dotted line represents the metaphase plate. hh q HH X Q h Q h
- + 1. Complete the table below for chromosome and chromatid number for a human cell: Mitosis Prophase Metaphase Anaphase Telophase End of Mitosis Meiosis I Prophase Metaphase Anaphase Telophase End of Meiosis I Meiosis II Prophase Metaphase Anaphase Telophase End of Meiosis II Chromosome Number Chromatid NumberWhich of the following features or events occur during prophase/prometaphase of mitosis AND prophase I of meiosis AND prophase II of meiosis? Mark all that apply. Chromatin condensation Crossing-over occurs Homologous chromosomes alignment Spindle assembly Synaptonemal complex formationA cell undergoing division has a haploid chromosome number of 8. Give the numerical value for each of the following: number of chromatids in a cell in prophase of mitosis number of chromosomes in a cell in metaphase of mitosis number of homologous pairs in a cell in anaphase of meiosis I number of centromeres in a cell in anaphase of meiosis I number of chromatids in a cell in metaphase of meiosis II number of centromeres in a cell in prophase of meiosis II