How many chromosomes are in a plant cell?
If the diploid chromosome number of a flowering plant is 24, then the somatic cells of the plant each contain 24 chromosomes (12 maternal and 12 paternal). Each of the three haploid nuclei in the germinated pollen grain must contain 12 chromosomes, and each of the 8 nuclei within the embryo sac contain 12 chromosmes.
What animal has only 23 chromosomes?
Overlap in chromosome numbers do definitely occur. Potatoes and Chimpanzees, for example, both have 24 pairs of chromosomes. Humans are not the only animal with 23 pairs, either–the Chinese subspecies of Muntiacusmuntjac, a small kind of deer, also has 23 pairs of chromosomes.
How chromosomes are formed in plant cells?
In all of these methods, small or large pieces of DNA are introduced into plant cells or protoplasts, and the DNA may be integrated in the plant chromosomal DNA. … On infection, about one-tenth of the DNA of the plasmid, containing the new gene, is transferred to the plant cell and is incorporated into the plant genome.
Which animal has the lowest number of chromosomes?
To date, the organism with the least number of chromosomes is the male Australian ant, Myrmecia pilosula, with one chromosome per cell (male ants are generally haploid—that is, they have half the number of normal chromosomes while the female ant has two chromosomes per cell).
What animal has 19 pairs of chromosomes?
Lion and tiger have nineteen pairs of chromosomes (38 chromosomes).
Can humans have 24 pairs of chromosomes?
In 1923 he published his results. Sperm contained 24 chromosomes, so if there were an equal number coming from the egg then humans must have 48 chromosomes in total, 24 pairs. … Humans have 48 chromosomes, 24 pairs, and that’s the end of that.