Normal events in mitosis gives rise to daughter cells with exactly the same chromosome number and genetic material. What may be expected to happen chromosomally and genetically to: 1. a cell with a chromosome that contains two centromeres?
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Normal events in mitosis gives rise to daughter cells with exactly the same chromosome number and genetic material. What may be expected to happen chromosomally and genetically to:
1. a cell with a chromosome that contains two centromeres?
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- A cell from a human female has just undergone mitosis. For unknown reasons, the centromere of chromosome 7 failed to divide. Describe the chromosomal contents of the daughter cells.Separation of the sister chromatids is a characteristic of which stage of mitosis? a. prometaphase b. metaphase c. anaphase d. telophaseIn terms of chromosome composition, are the two daughter cells in mitosis identical? Are they identical to the parental cell? If yes, cite 3 ways by which daughter cells and their parental cell are identical.
- In mitosis, what chromatid combination(s) will be present during metaphase? What combination(s) will be present at each pole at the completion of anaphase?Mitotic nondisjunction can occur, particularly in tumor cells. Assume a single nondisjunction event involving the X chromosome occurs in a cell undergoing mitosis in a human female. First, consider the daughter cell with the smaller number of chromosomes: How many total chromosomes will this cell have? How many X chromosomes will this cell have? Next, consider the daughter cell with the larger number of chromosomes: How many total chromosomes will this cell have? How many X chromosomes will this cell have?What is the major difference between a metaphase chromosome and a telophase chromosome in mitosis?
- Normal events in mitosis gives rise to daughter cells with exactly the same chromosome number and genetic material. What may be expected to happen chromosomally and genetically to: an unfertilized egg that undergoes mitosis, but fails to undergo cytokinesis? a cell with a chromosome that lost its centromere? a cell with a chromosome that contains two centromeres?In a diploid cell in which 2n = 14, how many telomeresare there in each of the following phases of the cellcycle?(a) G1 (c) prophase of mitosis(b) G2 (d) telophase of mitosisIn meiosis, each centromere has a spindle fiber attached only to one side. In mitosis, each centromere has a spindle attached to how many sides?
- What is the final result of mitosis in a human A) nearly genetically identical 2n somatic cells B) genetically different 2n somatic cells C) nearly genetically identical 1n somatic cells D) genetically identical 2n gamete cells Which of the following statements is TRUE? A) A single, replicated chromosome with sister chromatids has two centromeres. B) A single, unreplicated chromosome has two DNA molecules. C) Sister chromatids from a single chromosome are connected at the centromere. D) Homologous chromosomes are connected at the centromere. The first gap in the cell cycle (G1) corresponds to _____. A) normal growth and cell function B) the phase in which DNA is being replicated C) the beginning of mitosis D) the phase between DNA replication and the M phase In a diploid cell from a specific species has 5 chromosome pairs, how many sister chromatids will be found in a nucleus at prophase of mitosis? (Draw it!) A) 5 B) 10 C) 20 D) 40 Consider a cell from the species above.…List in each blank the description of events associated with each stage of mitosis in addition to the preparatory stage Interphase. Some events and structures occur only in plant cells and some in animal cells. Mark these events in the list with an asterisk.During meiosis, cells undergo two rounds of nuclear and cell division, but only one round of DNA synthesis. Describe the main differences between anaphase of mitosis and anaphase I in meiosis. Why are these differences important for meiosis to occur correctly?
