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Why is it important that gametes contain only a single set of chromosomes?
Wiki User
∙ 13y ago
An adult cell is "diploid", it has 2 sets of each chromosome.
To make a sex cell these chromosomes pairs are split in two (during mitosis) and one half of each pair goes into each gamete (the sperm in a man or an egg/ovum in a woman) which is "haploid". The "haploid" gametes therefore contain half the number of chromosomes as compared to an adult call.
When a man an a woman have sex the gametes from each meet and fuse together, giving the zygote produced 2 sets of each chromosome - back to the "diploid" state. The zygote then grows into the new baby which contains half the generic code form the mother and half the genetic code form the father - a wonderful new mix.
Wiki User
∙ 11y ago
Wiki User
∙ 13y agoGametes are sex cells, sperm and egg, so they are going to combine to create a new organism. If gametes had a pair of chromosomes, the offspring would wind up with four of each chromosome, which is not good.
Wiki User
∙ 13y agothere is many reasons, i think the most important one is to aid diversity in our population. you cant take 46 from each parent or 46 from one parent, that would be an exact copy of an all ready coded set of genes. Also the parental cell contains only one of each kind of chromosome
Wiki User
∙ 12y agoBecause life makes it difficult for it to evolve. Many things like bulbs have many different moves like vine whip. Only if it's true, then gametes contain only one member of each pair of homologous chromosomes. Which makes them Bi-sexual too. Simple.
Wiki User
∙ 11y agoThat is because when they fertilize, they need to form 2 sets or diploid cells! There are 23 pairs of chromosomes in humans for a total of 46 chromosomes. Everyone gets half their genetic material from their mother and half from their father. You cannot have any other number of chromosomes and be completely healthy.
Wiki User
∙ 14y agoextra chromosomes cause genetic mutations such as downs syndrome.
Zemzem Ahmed
gametes sex cells are sperm and eggs but they are creating a new organism.
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What chromosomes are found in body cells but not sex cells?
Sex cells (better known as gametes) being product of meiosis have single set (haploid number) of chromosomes whereas body cells have diploid number. Thus, 22 pairs of autosomes and one pair of sex chromosomes (XY), thus 46 chromosomes are present in our body cells. The gametes (sex cells) contain only 23 chromosomes in each.
What is it called when two gametes fuse during sexual reproduction?
When two gametes fuse during sexual reproduction, the single cell that forms is called a zygote. The gametes each have one set of chromosomes and are said to be haploid. When they fuse, they form the first diploid cell of the offspring, the zygote, which has two sets of chromosomes.
What produces with half the normal number of chromosome?
the answer is MEIOSIS meiosis produces 4 single cells with half member of the chromosomes mitosis produces 2 cells with full member of the chromosomes
Why do reproductive cells only contain half of the DNA an organism needs?
they don't contain half, they contain the full amount of chromosomesEdited answer:Because reproductive cells (male & female gametes) are formed after undergoing meiosis to have only single set of chromosomes (haploid). After gametic union both parent contribute one set and hence double set of chromosomes with double amount of DNA is restores in the offspring.
How many matched pairs of chromosmes are there in each cells?
The sex cells, or gametes, (egg and sperm) don't contain pairs of chromosomes. They each contain 23 singular chromosomes. When the egg and sperm combine, the resulting cell will have 23 pairs of chromosomes.
How many single chromosomes do humans have in their bodies?
Human cells contain forty-six chromosomes each. An exception to this is gametes (oocytes and sperm), which contain twenty-three chromosomes each.
How many single chromosomes do humans have in their body cells?
Human cells contain forty-six chromosomes each. An exception to this is gametes (oocytes and sperm), which contain twenty-three chromosomes each.
What term is used to describe the single set of 23 chromosomes contained in the gametes?
23 pairs of chromosomes is called the diploid number.--- DNAJamiana:Genotypewhich one dang it don't put two of these answers in this
How many pairs of chromosomes found in a gametes?
In human gametes, chromosomes are not paired. Instead, each gamete has one set of 23 chromosomes, and is said to be haploid.
What chromosomes are found in body cells but not sex cells?
Sex cells (better known as gametes) being product of meiosis have single set (haploid number) of chromosomes whereas body cells have diploid number. Thus, 22 pairs of autosomes and one pair of sex chromosomes (XY), thus 46 chromosomes are present in our body cells. The gametes (sex cells) contain only 23 chromosomes in each.
What chromosomes are in sex cells but not in body cells?
Sex cells (better known as gametes) being product of meiosis have single set (haploid number) of chromosomes whereas body cells have diploid number. Thus, 22 pairs of autosomes and one pair of sex chromosomes (XY), thus 46 chromosomes are present in our body cells. The gametes (sex cells) contain only 23 chromosomes in each.
Which cell contains only a single set of chromosomes?
A single complete set of chromosomes is called a haploid set of chromosomes. It is generally represented by the letter N. In humans for example, there are a total of 46 chromosomes per somatic cell. Since there are two copies of each chromosome. the 2N number for human is 46 and N = 23.
How many chromosomes does a sperm or egg have?
Gametes Have 23 Single Chromosomes, this means at fertilisation the pairs join together to make 23 pairs of Chromosomes. This is because Gametes are unspecialised cells so don't need all the Chromosomes that specialised cells have.
What does the term haploid mean?
The haploid number (n) is the number of chromosomes in a gamete of an individual. This is distinct from the monoploid number (x), which is the number of unique chromosomes in a single complete set. Gametes (sperm, and ova) are haploid cells. The haploid gametes produced by (most) diploid organisms are monoploid, and these can combine to form a diploid zygote. For example, most animals are diploid and produce monoploid gametes.
How do the number of chromosomes compare in gametes and somatic cells?
I will assume that you mean human cells. Somatic cells are diploid (2n), containing two sets of chromosomes, one of paternal, one of maternal origin. Gametes, on the other hand, are haploid (n), with a single set of chromosomes, ie. half as many as the somatic cell. Now, the haploid chromosome number (n) is characteristic of the species, and in humans this number happens to be 23. Therefore a human gamete has 23 chromosomes, and a human somatic cell 23 pairs, or 46 chromosomes.
What is it called when two gametes fuse during sexual reproduction?
When two gametes fuse during sexual reproduction, the single cell that forms is called a zygote. The gametes each have one set of chromosomes and are said to be haploid. When they fuse, they form the first diploid cell of the offspring, the zygote, which has two sets of chromosomes.
What produces with half the normal number of chromosome?
the answer is MEIOSIS meiosis produces 4 single cells with half member of the chromosomes mitosis produces 2 cells with full member of the chromosomes
