how many chromosomes would be present in the leaf cells of chickweed?
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The pollen of a chickweed plant contains 22 chromosomes.
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The chromosomes under study are taken from the meristem cells of the young growing onion roots. A healthy normal onion cell has 16 (2n = 16) chromosomes.
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Humans have 23 pairs of chromosomes, for a total of 46 chromosomes. In fact, each species of plants and animals has a set number of chromosomes.
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A species of a snail has 24 chromosomes- 12 pairs- in each somatic cell.
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Sex chromosomes. Human chromosomes typically exist in somatic cells as pairs. Normal somatic cells are diploid and contain a total of 23 pairs of chromosomes: 22 of these pairs are autosomes and one is a pair of sex chromosomes. Gametes are haploid, meaning their chromosomes do not exist in pairs.
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Sperm cell of grasshopper contains e. The chromosome number for grasshopper sperm cells will be 12. But the actual number of chromosomes in the egg cell will be 12 and that of the sperm cells will be 11 or 12.
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For instance, all human cells (except gametes) have 46 chromosomes. Cells of nematodes (worms), other than gametes, have 4 chromosomes. The number of total chromosomes in the non-gamete cells of a particular species is called the diploid number for that species.
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In fact, each species of plants and animals has a set number of chromosomes. A fruit fly, for example, has four pairs of chromosomes, while a rice plant has 12 and a dog, 39.
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In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells.
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A frog gamete has 13 chromosomes. Every frog body cell, then, has 26 chromosomes.
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Each somatic cell in an earthworm contains 36 chromosomes.
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A horse has 64 chromosomes in a somatic cell. How many chromosomes would you expect to find in a gamete: 128. 64.
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the venus flytrap diploid cell has 32 chromosomes and haploid cells each contain 16 chromosomes.
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The number of chromosomes does not correlate with the apparent complexity of an animal or a plant: in humans, for example, the diploid number is 2n = 46 (that is, 23 pairs), compared with 2n = 78, or 39 pairs, in the dog and 2n = 36 (18) in the common earthworm. There is an equally great range of numbers among plants.
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(The gametes of diploid organisms contain only single unpaired chromosomes and are called haploid.) Each pair of chromosomes comprises one chromosome inherited from the father and one inherited from the mother. For example, in humans, somatic cells contain 46 chromosomes organized into 23 pairs.
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Mitosis in Onion Root Tip The genetic information of all organisms resides in the individual DNA molecules or chromosomes. An onion cell possesses eight chromosomes lwhereas human cells possess forty six chromosomes.
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The chromosomes (really pairs of chromatids) split apart to form the genetic material of the four new cells. The end result is four sex cells each with a complete but single set of 23 chromosomes.