Bivalent Asymmetric

Bivalent chromosomes are structures that consist of two identical subchromosomes connected into one. These chromosomes are found primarily in the nuclei of eukaryotic and prokaryotic cells. Each bivalent has two nucleoli, particles that specialize in controlling cell division. They are located in the centromere - a structural part of the chromosome that determines its structure and function. Bivalents also have two chromatids - a quarter-dimensional fragment of one chromosome. A bivalent chromosome usually consists of two identical sets of genes - i.e. she has a double heritage. In this context, the word "asymmetry" means the uneven distribution of parts of chromosomes between subchromosomes or identical parts of a bivalent chromosome

The bivalent can have different shapes depending on the type of cell in which it is contained. For example, in prokaryotes they can be lenticular or oval in shape, and in eukaryotes they can be cylindrical or oval. In addition, bivalent chromosomes can vary in size.

A centromere is a special place in the middle of a chromosome that connects one half of the chromosome to the other half. The half that is closer to the chromosome body is a metacentromere, and the part further away is an ametacentromere.

In biology, a double chromatid, i.e., a group of chromosomes with centromeres is evenly distributed throughout the entire double mass of chromatin - chromodendrite, does not have a significant distribution of chromosomal regions. This double-crossed chromosome feature is known as the bivalent state. Chromosomes of equal length, usually alternating in bivalent chromosomes or containing a large number of pairs of blood senes. In this article, we will discuss two types of bivalence related to homologous chromosomes.

Asymmetric bivalency is one of the types of double chromosome structure. It lies in the fact that the chromatids belonging to the maternal chromosome constitute one allele of the pair and the distal region of the chromomere is formed into a two-treated region.

For example, a two-piece human chromomere on the X chromosome (XX) or a human chromosome on the Y chromosome (XY), which is also called chrysome

*Bivalents* are cells in which the presence of two identical sex gametes (gonads) is observed. Examples of such cells are sperm in men or eggs in women.

Bivalents also include cells that have two different sex gametes of the same type, for example, in aquatic organisms that reproduce in reservoirs, diploid sex cells and haploid gonads participate in spawning. Often these cells are didiploid (two-stage growth

Bivalent hemicaryon symmetry

One of the most frequently used terms in modern biology is the term "bivalent". This term refers to a double member that contains two different chromosome shapes. This form of chromosomes is usually the result of the process of meiosis, where identical genes are passed from one parent to offspring and the opposite form of chromosomes is passed on to the other parent, or mitotic cell division. Sinerten containing two spermatozoa. In the bivalent state, each chromosome contains one site for each of the two alleles. For example, if a person has genes for 1 and 2 alleles (all four alleles