how many chromosomes does yeast have?
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Single-celled brewer's yeast — whose genome, at 12 million DNA letters long, is hundreds of times shorter than that of humans — boasts 16 chromosomes.
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Rarely, some cells end up with complete extra sets of chromosomes. Cells with one additional set of chromosomes, for a total of 69 chromosomes, are called triploid. Cells with two additional sets of chromosomes, for a total of 92 chromosomes, are called tetraploid.
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For example, most eukaryotes are diploid, like humans who have 22 different types of autosomes, each present as two homologous pairs, and two sex chromosomes. This gives 46 chromosomes in total.
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Humans usually have 22 pairs of homolog chromosomes (autosomes) and as sex chromosomes 2 x chromosomes (in female), or 1 x and 1 y chromosome (in males), thus in total 46 chromosomes per body cell (see human karyogram; 2n = 46) and 92 chromatids per cell after replication.
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The yeast Saccharomyces cerevisiae is a simple single-celled eukaryote with both a diploid and haploid mode of existence. The mating of yeast only occurs between haploids, which can be either the a or α (alpha) mating type and thus display simple sexual differentiation.
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Answer and Explanation: The cells of a human each contain 23 pairs of chromosomes, for a total of 46 chromosomes in all. It doesn't matter if it is a skin cell, a liver...
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The typical human body cell contains 46 chromosomes.
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A chromosome is an organized package of DNA found in the nucleus of the cell. Different organisms have different numbers of chromosomes. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.
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Reason for correct answer: Hence, there will be 39 chromosomes at each pole of the cell. The number of chromosomes will be less from diploid (2n) to haploid (n).
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There are two types of artificial chromosomes: Bacterial artificial chromosome (BAC) and yeast artificial chromosomes (YAC).
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Humans have 23 pairs of chromosomes and other great apes have 24 pairs of chromosomes. In the human evolutionary lineage, two ancestral ape chromosomes fused at their telomeres, producing human chromosome 2.
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Mice have 20 chromosomes in their haploid genome (thus 40 chromosomes in all). The haploid genome is about 3 picograms, similar to humans. The gene order of the genomes of mice and humans are conserved (synteny) although there are rearrangements, several per chromosome.
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Human cells contain 23 pairs of chromosomes (46 chromosomes in total). Each chromosome is formed by 2 strands of DNA tied by hydrogen-bonds to each other making the classic DNA double helix (double-stranded DNA). So, in total there are 46*2=92 strands of DNA in each diploid human cell!
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S. cerevisiae (yeast) can stably exist as either a diploid or a haploid. Both haploid and diploid yeast cells reproduce by mitosis, with daughter cells budding off of mother cells.
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Corn has 20 chromosomes total, and rice has 24. The three genomes (A, B and D) of common bread wheat with each of the seven sets of chromosomes from each ancestor.
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Most cells holds 23 pairs of chromosomes, for a total of 46. You probably learned back in high school that you inherited one set of these gene-carrying chromosomes from your mother and another set from your father, and that the genetic contributions of each parent worked out to be roughly equal.
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Chromosomes also contain chemical substances that govern the function of genes. The human body consists of millions of cells; each cell (liver, intestinal etc) contains 23 pairs of chromosomes except for germ cells (egg and sperm) and red blood cells. Thus a total of 46 chromosomes are present in human cells.