The gametes of the tetraploid of the diploid have several sets of chromosomes

Diploid. There are two sets of chromosomes.

After becoming tetraploid there are four sets of chromosomes, gametes of tetraploids.

The chromosome set is diploid (the chromosome set of gametes is only half of the original).

The vast majority of organisms are diploid organisms and are haploid.

If the original species itself is polyploid, then its haploid somatic cells must contain more than one chromosome. For example, the haploid of tetraploid rice contains two sets of chromosomes, and the haploid of hexaploid wheat contains three sets of chromosomes.

If it is a diploid organism, its haploid naturally contains one chromosome set, but for polyploid organisms, it is not, for example, the potato is tetraploid, and its haploid contains two chromosome sets;

Common wheat. is hexaploid, and its haploid contains three sets of chromosomes; Rye is octaploid, and its haploid contains four chromosome groups. So an individual with a set of chromosomes must be haploid, but a haploid does not necessarily contain only one set of chromosomes.

Your description is wrong. What does tetraploid mean in diploid?

The starting point for judging the number of chromosomes is the zygote, and then the number of chromosomes: if it is two chromosomes, it is called diploid, and if it is four chromosomes, it is called tetraploid.

The characteristics of the chromosome group are: the chromosomes in a chromosome group are all non-homologous chromosomes, half of the gametes and somatic cells cannot be said to be all non-homologous chromosomes, and a chromosome group carries all the genetic information of a species' development.

Therefore, a chromosome set should be the entire chromosomes in the gametes of diploid organisms.

The chromosomes, a group of non-homologous chromosomes in a cell, are morphologically and functionally distinct, but control the entire information about the growth, development, heredity, and variation of an organism.

Diploid organisms do have two sets of chromosomes, but diploid organisms have gametes, note that is"Gametes", so there is only one set of chromosomes.

1. The number of chromosomes is different: there are two more chromosomes in tetraploid cells than in diploids. There are two more chromosome groups in tetraploid cells than diploids, and generally polyploid plants have thicker stems and stronger fruits, larger and more nutritious.

Triploid is a triploid seedless watermelon formed by treatment with colchicine to double the chromosomes and then hybridize with the diploid.

2. The appearance is different: the shape of the quadruple ploid is greater than that of the diploid; The stems are thick; The flowers are large and thick in color; Fruits, seeds, cells, stomata, and pollen are all large. For example, triploid and tetraploid grapes have large grains; Tetraploid radish has large roots.

3. Different nutrients: Tetraploid carbohydrates, proteins, vitamins and plant alkaloids are highly expressed. For example, tetraploid tomatoes contain twice as much VC as diploids. Tetraploid violet and cinnamon are aromatic and have many nectar glands.

Summary. First of all, the book only talks about a part, but we have another part, which is not covered at all, because it is rarely used, so we can't go according to what the textbook says, we need a better comprehensive understanding

A tetraploid will have two homologous chromosomes at the same level when producing gametes, but doesn't the book say that homologous chromosomes are separated?

First of all, the book is only a part of it, but we have another state talk about it, and it is not talked about at all, because it is rarely used, so Chunzai said that we can't go according to what the textbook says, and we need a better comprehensive understanding

Can you say the details?

OK. Look at it, what exactly is this question? And he's definitely a little different from the textbook, and if you tie the two together, you'll definitely understand.

If I tell you now, and you don't understand it after you hear it, then wouldn't I have said it in vain? Because when it comes to talking, I'm afraid you won't understand.

People have 23 pairs of chromosomes, of which 22 are autosomes and 1 is sex.

Humans are diploid and have 2 sets of chromosomes.

Q: chromosomes and ploids are not the same, but there are overlaps between these two concepts, for example, there are --- haploids, diploids, and polyploids.

The key to the distinction lies in this ploidy, which is developed from a fertilized egg, that is, diploid or polyploid;

It is the gamete that develops that is haploid).

Haploids can have .n chromosomes are grouped, but as long as they are gametes developed, they can only be called haploids. Human beings have 2 chromosome sets, but because human beings are developed from sperm and eggs, they are diploid

A complete set of non-homologous chromosomes in a cell, which are morphologically and functionally distinct, but assist each other and carry all the information that controls the growth, development, heredity, and variation of an organism, such a set of chromosomes is called a chromosome set.

Chromosomal ploidy refers to the number of homologous chromosomes in a cell, and only one set of them is called a "monoset" or "haploid". It is important to note that haploid is distinguished from monoploid (an individual with a set of chromosomes in somatic cells). Some haploid organisms have more than one set of chromosomes in their somatic cells.

Polyploidy: English name: polyploid Individuals with three or more chromosome groups in somatic cells Polyploidy is widely present in the biological world, commonly found in higher plants, and can be divided into homopolyploidy and heteropolyploid due to the different chromosome groups.

1) If an organism develops from a fertilized egg (or zygote) into a sock, and there are several chromosome sets in its somatic cells, the organism is several ploids.

2) If the organism is directly developed from germ cells - egg cells or pollen, it is called haploid regardless of how many chromosomes are contained in the reflux cell. For example, the haploid of an octaploid organism contains 4 sets of chromosomes.

3) An individual developed from a fertilized egg contains several sets of chromosomes, which is called several ploidies.