The diploid chromosome number for the body cells of a frog is 26. What would that number be after three generations if meiosis did not occur before gamete formation?
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The diploid chromosome number for the body cells of a frog is 26. What would that number be after three generations if meiosis did not occur before gamete formation?
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- The diploid chromosome number for the somatic cells of a frog is 26. What would that number be after three generations if meiosis did not occur before gamete formation.How many homologous pairs of chromosomes would be in the zygote if it were a male organism? Explain.Which statement is true of meiosis? 1)two identical cells in both divisions 2)the first division produces haploid cells and the second produces diploid cells 3)the first division produces diploid cells and the second produces haploid cells 4) the products of both meiotic divisions are haploid
- Meiosis is also known as reduction cell division because it reduces the ploidy level from diploid (2n) to haploid (n). Why do we need to reduce our ploidy level in certain cells?A normal diploid cell from a chimpanzee has 48 chromosomes. How many chromosomes will be in a chimpanzee cell just before meiosis begins, after meiosis I, and after meiosis II? After which of these stages will the chromosomes have two chromatids?The Black Rhinoceros has a chromosome number of 84 (total). Based on this information, how many copies of each chromosome are present in each cell (or soon to be daughter cell) Start of mitosis End of mitosis 8 Start of meiosis End of meiosis I End of meiosis II
- Construct a table for the different stages of meiosis, giving the number of chromosomes per cell and the number of DNA molecules per cell for a cell that begins with 4 chromosomes (two homologous pairs) in G1. Include the following stages in your table: G1, S, G2, prophase I, metaphase I, anaphase I, telophase I (after cytokinesis), prophase II, metaphase II, anaphase II, and telophase II (after cytokinesis).What would happen to the chromosome number in gametes and offspring if gametes were formed by the mitotic process instead of the meiotic process?Identify two ways meiosis contributes to genetic recombination? Why is it necessary to reduce the number of chromosomes in gametes? Blue whales have 44 chromosomes in every cell. Determine how many chromosomes you would expect to find in the following: Cachalot whale Egg cell Daughter cell from mitosis Daughter cell from mitosis II
- A sperm cell from the fruit fly Drosophila melanogaster contains four chromosomes. How many chromosomes would be present in a spermatogonial cell about to enter meiosis? How many chromatids would be present in a spermatogo- nial cell at metaphase I of meiosis? How many would be present at metaphase II?If an organism has a total diploid chromosome number of 18, how many chromosomes will be in a single gamete? 54 9. 18 36The process of meiosis occurs during the cell cycle production and results in four unique diploid four identical diploid cells four unique haploid cells four identical haploid cells . To maintain the correct number of chromosomes in offspring, male and female gametes contain the same number half of the number twice the number of chromosomes as somatic cells. During fertilization, gametes fuse to form a diploid haplid cell called a zygote.