What guide or pull chromosomes during mitosis?
The mitotic spindle, comprised of microtubules, guides and pulls chromosomes during mitosis. The spindle fibers attach to the centromeres of sister chromatids and help separate them to opposite poles of the cell during cell division.
the prefix di- means 2. so a diploid is two sets of chromosomes.
What is the protein handle on a chromosome?
The protein handle refers to specific regions on a chromosome where proteins can bind and interact with DNA. These protein handles help regulate various cellular processes such as gene expression, DNA replication, and chromosome structure. They play a crucial role in organizing and controlling the functions of the chromosome.
Well, the best answer to that is "Mutant".
Not all the mutations of this class are fatal, and in some cases such offsprings are born.
There is a relatively well-known example of such a case in humans- if I'm not mistaken, chromosomes 23 and 9 are involved, where the combination of the two results in a missing stop-codon, leading to a long protein that is disassembled... but I'm afraid I can'trecall the name of the protein or the disease it is related to. probably a cancer of some sort.
To the above person: You may be thinking of down syndrome, that can occur if chromosome 23 has an extra copy (due to nondisjunction).
The process in which a section of DNA is exchanged between homologous chromosomes is known as "crossing-over" and is fairly common. So common, in fact, that it happens in every one of us, and does not mean that we will mutate. All it does is effect the possible combination of traits of our children.
Chromosomes align in center of cell?
During metaphase of mitosis, chromosomes align along the center of the cell (the metaphase plate) to ensure they are evenly separated to opposite poles during anaphase. This alignment is necessary for proper distribution of genetic material to daughter cells.
What are the functions of the long arm of the chromosome?
The long arm of a chromosome carries important genetic information in the form of genes that code for various traits and characteristics. It also plays a role in regulating gene expression, chromosomal structure, and chromosome pairing during cell division. Additionally, the long arm facilitates interactions with other molecules within the cell for proper cell function.
What does a chromosome do in a cell?
Chromosomes contain genetic information in the form of DNA. They play a crucial role in cell division by ensuring that each daughter cell receives a complete set of genetic instructions. Chromosomes also help determine an organism's traits and characteristics.
What are homologous chromosome?
homologous chromosomes are chromosomes that are paired during meiosis. They consists of four chromatids. One pair comes from the father and the other, from the mother.The homologous chromosomes are the same size, their centromeres are in the same postition, they have the same number of genes, arranged in the same order.
the main definition is Chromosomes that have the same length, appearance and copies of genes, although the alleles may differ
What is the chromosome theory of inheritance?
(Was it really necessary to answer eleven times?) Chromosome theory is a principle of genetics. Known as the chromosome theory of inheritance, the principle is that all chromosomes are carriers of genetic material that pass from one generation to the next.
The theory of inheritance was proposed independently by WALTER SUTTON and THEODORE BOVERI
i) Since the sperm and egg cells provides the only bridge from one generation to another, all hereditary characters must be carried in them
ii) The hereditary factors are carried in the nucleus
iii) Like the Mendelian alleles , chromosomes are also found in pairs.
When do chromosomes condense and become thicker rod-like?
Chromosomes condense and become thicker rod-like structures during the prophase stage of cell division, specifically during prophase I of meiosis and prophase of mitosis. This condensation is necessary for the chromosomes to be visible under a microscope and for proper segregation during cell division.
How many centromere is in chromosome?
Chromosomes typically have one centromere, which is a specialized region that holds the sister chromatids together during cell division. The centromere plays a crucial role in ensuring proper segregation of genetic material.
What is the function of a chromosome?
Lemme intellingencify everyall about what the gene is about. It is a heredetary homoglobin extra fuctional funcution that can deduce the mind to all forms of genesifying there is.
Chromosomes are the thread - like structures present in the nucleus that carry genes.Different combination of chromosomes may result in different characters . the chromosome is a organelle that contains little bits and pieces of DNA (genes) and transfers to offspring.
How many chromosomes does a German Shepherd have?
A German Shepherd typically has 78 chromosomes, which are organized into 39 pairs. This is the same chromosome count as most other dog breeds.
What are some of the characteristics governed of the x and y chromosomes?
One of the main characteristics governed by the X and Y chromosomes is determining an individual's biological sex. The presence of the Y chromosome typically leads to the development of male characteristics, while the absence of the Y chromosome usually results in female development. Additionally, X-linked genetic disorders are more commonly observed since males have only one X chromosome.
How was chromosome map developed?
It all began with the mapping of the chromosomes of the fruit fly by Henry Morgan in the early 1900's. Later Dr. Watson (of Watson and Crick fame) at the National Institutes of Health worked on the human karyotype. Many, many people were and still are involved.
Chromosomes are found in the nucleus of eukaryotic cells. They are made up of DNA and proteins, which carry the genetic information essential for cell function and heredity. During cell division, chromosomes condense to form visible structures that can be seen under a microscope.
Do genes on the same chromosome separate?
Genes on the same chromosome can separate through a process called genetic recombination or crossing over during meiosis. This process can shuffle genes between homologous chromosomes, creating genetic diversity in offspring.
How many pairs of chromosomes do each human skin cell have?
Each human skin cell has 46 chromosomes, which are organized into 23 pairs. This includes one set of 23 chromosomes inherited from the mother and another set of 23 chromosomes inherited from the father.
Is a chromosome smaller than DNA?
Yes, a chromosome is a structure made up of DNA wrapped around proteins. DNA is a molecule that carries genetic information, while chromosomes are made of DNA and associated proteins that help in organizing and packaging the DNA inside the cell nucleus.
How many chromosomes do dogs have?
Dogs have 37 pairs of chromosomes. As with pairs of shoes, the number of pairs is multiplied by 2 to get the total number of chromosomes in a dog's body cells. Therefore, the total number of chromosomes in a dog's body cells is 76. Sex cells, (sperm or eggs) have half of the pair, so would have 34 chromosomes.
________
The above is incorrect, dogs have 78 chromosomes meaning they have 39 pairs.
How and where x and y chromosomes are produced in human male and female body?
X and Y chromosomes, just like any other chromosomes, lay in every cell in the human body that have a nucleus. In a male's generic cell there are 22 pairs of chromosomes, and X and Y. In a female's generic cell there are 23 pairs, one of which is XX.
In sex cells, however, there are only 23 chromosomes as opposed to the 46 in a normal cell. A sperm cell carries either one of the X and Y chromosome, while an egg carries the X chromosome. In a successful fertilisation these cells fuse and the result carries either XX or XY, determining a female or a male, respectfully.
How many chromosomes do lobsters have?
A lobster has 100 chromosomes.
Humans have 46 chromosomes, the same as a lizard. A dog has 78 chromosomes, and a fly has 12 chromosomes.
Where in the cell are the chromosomes located?
The chromosomes are located in the nucleus of the cell.
The x chromosome is one of the sex chromosomes, the other being the y chromosome. In mammals there are two of the sex chromosomes in each organism. Females generally contain two x chromosomes, and males contain one x chromosome and one y chromosome.