A plant has 7 chromosomes in its somatic cells and at Metaphase I of meiosis 3 bivalents (3 pairs of homologous chromosomes) and 1 univalent (an unpaired chromosome) are seen. This plant produces gametes that are _____ and has a diploid (2n) number of _____.
This plant produces gametes that are ready for fertilization and has a diploid number of zygote.
A plant has 7 chromosomes in its somatic cells and at Metaphase I of meiosis 3...
3. A diploid cell with eight chromosomes undergoes meiosis. (7 pt) a. How many chromosomes are there in each cell after meiosis I? How many daughter cells are made after meiosis I? Are the daughter cells diploid or haploid? (1.5 pt) How many chromosomes are there in each cell after meiosis ll? How many daughter cells are made after meiosis II? Are the daughter cells diploid or haploid? (1.5 pt) What two mechanisms allow genetic variation among the gametes produced...
underers meiosis, how many cells will result, 12) If a eukaryotic cell has 20 chromosomes and and how many chromosomes will they contain? A) 4 cells, each with 20 chromosomes B) 4 cells, each with 10 chromosomes C) 2 cells, each with 10 chromosomes D) 2 cells, each with 20 chromosomes Answer: 13) Crossing over occurs during which stage of meiosis? A) telophase I B) metaphase II C) anaphase II D) prophase II E) prophase I Answer: 14) Which of...
Investigation XI - Meiosis and Gamete Formation Assume an organism has a chromosome number of 6. Further assume that the genes A and a are on two of the chromosomes, B and b on another pair, and C and c on the third pair. Sketch below the arrangements for these chromosomes (1) in a somatic cell such as a skin cell that is undergoing metaphase of mitosis, (2) in a primary spermatocyte in metaphase I and (3) in a secondary...
Compare mitosis and meiosis by filling in the chart below. Meiosis Mitosis Characteristic Are daughter cells genetically identical or different from the parent? Involves how many cell divisions? Produces how many daughter cells? Produces haploid or diploid cells? Produces what type of cell? Sister chromatids or homologous chromosomes separate? What are the functions of the cells produced? 05 Answer the following Explain how segregation of chromosomes during meiosis can generate four types of gametes (assume four chromosomes, two homologous pairs)...
Simulate meiosis by drawing Two pairs of chromosomes with crossing over Assume that two of the genes are on chromosome 1, and one of the genes is on chromosome 2. Allow crossing over to occur between the two genes on the same chromosome. Also, are there multiple ways that the chromosomes could segregate to produce different results? Show them. Instructions: Set up your cell. The cell you start with should be: A diploid cell It should contain 2 pairs of...
Question 2 (11 points) In the plant genus Triticum there are many different polyploid species, as well as diploid species. Crosses were made between three different species, and hybrids were obtained. The meiotic pairing was observed in each hybrid, and this is recorded in the following table. (Hint#1: A bivalent is two homologous chromosomes paired at meiosis, and a univalent is an unpaired homolog at meiosis. HINT #2 : For this question, review your knowledge of chromosome inheritance and pairing...
Mitosis and Meiosis Comparison Table Mitosis Meiosis Occurs in all cells that divide? (Yes or no) Number of divisions? Number of daughter cells? Chromosome number of parent cells? (diploid or haploid) Chromosome number of daughter cells? (diploid or haploid) Results in gametes? (yes or no) Involves separation of homologous chromosomes (yes or no)? Involves separation of sister chromatids (yes or no)?
3) The diploid cells of A. roksiki have a total of 4 chromosomes (2n=4). One of the homologous pairs is large with an acrocentric centromere and the other is small with a metacentric centromere. A. Draw the chromosomes from A. roksiki as they would appear in metaphase 2 of meiosis. Include all cells and all chromosomes. Assume meiosis is proceeding normally and ignore any effects of crossing over. (6 pts) B. A strain of A. roksiki is heterozygous for a...
20. How many cells are formed at the end of Meiosis I & how many copies of chromosomes does each cell have?_ 21. Is DNA copied before Meiosis II? _ 22. How many cells form at the end of Meiosis II and how many chromosomes do they contain? • 23. Oogenesis ultimately gives rise to (one ovum, four ova) with the Chaploid, diploid) number of chromosomes. 24. A sperm cell is a (gamete, zygote), and is (haploid, diploid). 25. When...
When does the separation of homologous chromosomes occur? • O A. Meiosis 2 • O B. Before Meiosis • . C. Meiosis 1 D. After Meiosis Reset Selection If a cell has 24 pairs of chromosomes in its diploid state, how many chromosomes will it have after Meiosis 2? • • • • A. 24 B. 12 C. 48 D.6 Dan What structure is responsible for separating the chromosomes during Meiosis? A. Spindle Fibers B. Cytoplasm C. Metaphase plate •...