Zygosity Homologous chromosomes Aneuploidy Recombination Mitosis ||| ||| Sexually reproducing organisms have two of each chromosome since one came from the mother and one came from the father. An unusual number of chromosomes. Degree of similarity of the alleles in an organism. Cell division in which the number of chromosomes remains the same in the daughter cells A process where gametes with recombined genotypes are formed due to the exchange of alleles from homologous chromosomes in Prophase 1 of Meiosis 1 during strand breakage and repair.

Zygosity Homologous chromosomes Aneuploidy Recombination Mitosis ||| ||| Sexually reproducing organisms have two of each chromosome since one came from the mother and one came from the father. An unusual number of chromosomes. Degree of similarity of the alleles in an organism. Cell division in which the number of chromosomes remains the same in the daughter cells A process where gametes with recombined genotypes are formed due to the exchange of alleles from homologous chromosomes in Prophase 1 of Meiosis 1 during strand breakage and repair.

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter8: How Cells Reproduce

Section: Chapter Questions

Problem 12SQ

See similar textbooks

Similar questions

A cell (2n = 4) has undergone cell division. Daughter cells have the following chromosome content. Has this cell undergone mitosis, meiosis I, or meiosis II?
Figure 6.4 Which of the following is the correct order of events in mitosis? a. Sister chromatids line up at the metaphase plate. The kinetochore becomes attached to the initotic spindle. The nucleus re-forms and the cell divides. The sister chromatids separate. b. The kinetochore becomes attached to the mitotic spindle. The sister chromatids separate. Sister chromatids line up at the metaphase plate. The nucleus re-forms and the cell divides. c. The kinetochore becomes attached to metaphase plate. Sister chromatids line up at the metaphase plate. The kinetochore breaks down and the sister chromatids separate. The nucleus re-forms and the cell divides. d. The kinetochore becomes attached to the mitotic spindle. Sister chromatids line up at the metaphase plate. The kinetochore breaks apart and the sister chromatids separate. The nucleus re-forms and the cell divides.
Human haploid gametes (sperm and eggs) contain: a. 46 chromosomes, 46 chromatids b. 46 chromosomes, 23 chromatids c. 23 chromosomes, 46 chromatids d. 23 chromosomes, 23 chromatids
Various stages of cell division Growing spindle fibres Disappearing nuckar membrane Centrio les migrate toward poles Replicated chromosome
x * X Given the cell shown here, answer the following three questions. 1. Describe the ploidy and total chromosome count of this cell without using any words. 2. What checkpoint in the cell cycle will allow this cell to move to the next phase? 3. What will be the ploidy of the two resulting daughter cells? 4. If non-disjunction occurred in one of the chromosomes shown here, what would be the ploidy of each of the resulting daughter cells?
TELUPHASE 4 Meiosis is the division of a germ cell involving two fissions of the nucleus and giving rise to four gametes or sex cells, each possess ing half the number of clromosomes of the original cell. Its phases begirning interphase are PROPHASE 1, METAPHASE 1, ANAPHASE , TELOPHASE 1, PROPHASE 2, METAPHASE 2 ANAPHASE 2, and TELOPHASE 2. Easy Level Instructions. Fill in the blanks with needed word/s to complete the concept of each sentence/paragraph. Choose your answer from the word pool below. Write your ans wer in the space provided for. Spindle Checkpoint Cytokinesis G1 Mitosis S Phase Checkpoint G2 Check point G2 M Checkpoint Apoptosis I. A (1) Chck point is a stage in the eukaryotic cell cycle at which the cell examines intemal and external cues and "decides" whether or not to move forward with division. II. There are number of checkpoints, but the three most important ones are: The (2) at the Gl/S transition, the (3): at the G2/M transition and the (4) at the transition from…
After telophase Il of meiosis, the chromosomal makeup of each daughter cell is: Practia diploid, and the chromosomes are each composed of a single chromatid. O diploid, and the chromosomes are each composed of two chromatids. O haploid, and the chromosomes are each composed of a single chromatid. O haploid, and the chromosomes are each composed of two chromatids.
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.
A 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.
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 chromatin
Match the phases of meiosis with the correct description Metaphase I [ Choose ] [Choose ] Sister chromatids line up along the center of the cell. Cytokinesis produces four unique daughter cells, spindle dissolve, and the nuclear envelope reappears. Spindle fibers pull homologous pairs of chromosomes apart. Nuclear envelopes of daughter cells dissolve, and chromosomes condense. Spindle fibers pull sister chromatids apart. Homologous pairs of chromosomes line up at the center of the cell in tetrads. Cytokinesis produces two daughter cells, spindle dissolves, and nuclear envelope reappears. Nuclear envelope dissolves, DNA condenses and crossing over occurs. Anaphase II Prophase I Telophase I [Choose ] Prophase II [ Choose ] Telophase II [ Choose ] Anaphase I [ Choose ] Metaphase II [ Choose ] > > >
During what phase of meiosis do homologous chromosomes separate? O anaphase I O metaphase I O telophase || O anaphase || metaphase II