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Why do reproductive cells need to have half the normal number of chromosomes?
Wiki User
∙ 12y ago
Humans and other organisms that reproduce sexually need to have half the normal number of chromosomes to make sure their offspring have the same number of chromosomes as they do - the father and mother each contribute half of their chromosomes (sperm and egg).
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoReproductive cells need to have half the normal number of chromosomes so as to ensure that their offspring also have the same number of chromosomes as their parents.
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Can the number of chromosomes in a reproductive cell be greater than the number chromosomes in an organism's body cell?
No. The reproductive cells (eggs, sperm, ova and pollen) all contain half the number of chromosomes of an organisms body cell. This means that at fertilization the two reproductive cells (or gametes) combine to form a single cell with the appropriate number of chromosomes.If a gamete had more chromosomes than a normal cell then fertilization would lead to even more chromosomes and an offspring that would be seriously genetically compromised.
Compare the number of chromosomes in an organism's body cells with the number in its reproductive cells?
The reproductive cells of an organism each contribute half of the required genetic material to create the offspring. This means that each reproductive cell has 1n, while the organism has 2n chromosomes.
What produces cells with half normal number of chromosomes?
Meiosis is a form of cell division that produces four daughter cells that are haploid (have half the number of chromosomes found in a normal/somatic cell). Meiosis is involved in sexual reproduction, and produces gametes (sperm and ovum/egg).
Haploid cells are symbolized by what?
Haploid cells are denoted n, and diploid cells are denoted 2n."n" refers to the set of chromosomes - therefore haploid cells have one set of chromosomes and diploid cells have two sets (pairs of chromosomes). Haploid cells have half the number of chromosomes as diploid cells.
How do specialized reproductive cells form in multicellular eukaryotes?
Meiosis or reduction division. These specialized cells only carry half the number of chromosomes of a normal cell. When they join with another reproductive cell, fertilization has occurred. This occurs in the sperm and egg.
What do terms diploid and haploid mean?
Haploid cell has half of the normal number of chromosomes the reproductive cell has. Diploid cell refers when the cells has two alleles of a gene.
Did any cell has odd number of chromosomes in it?
in humans the sperm and egg cells (gametes) have 23, half the number of chromosomes as in normal cells
How does number of chromosomes in a human body cell compare with the number of chromosomes in a human reproductive cell?
In the human body there are 23 pairs of chromosomes (46 in total); in reproductive cells there are only one half of the pair (or 23 in total). During fertilization the 23 from the male sperm cell fuse with the 23 from the female ovule and recombine as two pairs of 23 chromosomes (46 again in total). Normal human cells are diploid (2n), while sex cells are haploid (n)
What do Reproductive cells contain half the number of?
Reproductive cells, also known as gametes, contain half the number of chromosomes compared to other cells in the body. This is because during sexual reproduction, gametes from two parents combine to form a new individual with a complete set of chromosomes. In humans, for example, gametes contain 23 chromosomes each, while most other cells in the body have 46 chromosomes.
How many pair of chromosomes do normal human cells contain?
Gametic [haploid] Cells are chromosome number n - which involves 23 individual chromosomes. Somatic [or diploid] Cells are chromosome number 2n - which involves 23 pairs of chromosomes. Mitotic Cells are 4n.
If the number of chromosomes in the skin cell of an organism is 28 what is the number of chromosomes in the organism's cells?
depends on the organism, but (i think) it should be half the normal number of chromosomes in a normal cell, because the gametes (egg and sperm) are haploid cells, meaning they have half the number because when they fuse together in fertilisation they need to have the correct amount of chromosomes so that they can duplicate and grow into an embryo.
What happens to chromosomes in the nucleus of a body cell when it forms reproductive cells?
Chromosomal number become halved.Diploid cells be come haploid.
