What is the advantage of creating chromosomes?

Having extra sets of chromosomes compared to other species that have the same but fewer sets is called being polyploid. Organisms are constantly under assault from their environment. Having extra sets of chromosomes makes them better able to cope with the pressures that threaten to wipe them out.

What is the purpose of forming chromosomes?

The most important function of chromosomes is to carry genes—the functional units of heredity. A gene is usually defined as a segment of DNA that contains the instructions for making a particular protein (or a set of closely related proteins).

Why is it an advantage to store DNA as a chromosome?

The DNA inside of a cell is organized so that it fits well within the small size of a cell. Its organization also facilitates the easy separation of the correct chromosomes during cell division.

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Is it beneficial to have more chromosomes?

Extra copies of chromosomes are typical in cancerous tumor cells, but researchers taking a closer look find that some extra copies promote cancer growth while others actually inhibit cancer metastasis.

Why is it beneficial for a cell to have lots of small chromosomes rather than having a few really large ones?

These results show that there is a factor that is intrinsic to a little chromosome that determines its behavior, rather than its size per se. This extra “boost” that small chromosomes have helps explain how they can punch above their weight, ensuring recombination on every chromosome, no matter how small.

Which description best describes the function of chromosomes?

which of the following best describes the function of chromosomes? enable more efficient packing and transporting of genetic material in mitosis.

What is chromosome composed of?

A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.

What is the advantage of DNA being uncoiled during interphase?

DNA is usually loosely packed within the nucleus as unravelled chromatin. In this unravelled form, the DNA is accessible to transcriptional machinery and so genetic information can be translated.

What is the physical advantage of the chromatin coiling and condensing to form short chromosomes at the onset of mitosis?

The nuclear envelope(s) is absent. 13. What is the physical advantage of the chromatin’s coiling and condensing to form short chromosomes at the onset of mitosis? Short, compact bodies are mechanically much easier to manipulate during mitosis than are long, thin chromatin threads.

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How does DNA become a chromosome?

In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. … DNA and histone proteins are packaged into structures called chromosomes.

What is the biggest advantage to having 2 sets of chromosomes in each cell?

Having extra sets of chromosomes compared to other species that have the same but fewer sets is called being polyploid. Organisms are constantly under assault from their environment. Having extra sets of chromosomes makes them better able to cope with the pressures that threaten to wipe them out.

What happens if you are missing a chromosome?

When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes. But if meiosis doesn’t happen normally, a baby may have an extra chromosome (trisomy), or have a missing chromosome (monosomy). These problems can cause pregnancy loss. Or they can cause health problems in a child.

What happens when you have 47 chromosomes?

Humans have 23 pairs of chromosomes. A trisomy is a chromosomal condition characterised by an additional chromosome. A person with a trisomy has 47 chromosomes instead of 46. Down syndrome, Edward syndrome and Patau syndrome are the most common forms of trisomy.

What is the importance of variation in plant breeding?

It utilizes the genetic variation between individuals within a plant species and combines the desired properties into new and improved varieties. Plant breeding is dependent on genetic variation, and new variation is fundamentally important for introduction of new traits in breeding programs.

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Why is maintaining the number of chromosomes important to a living organism?

Mitosis is the type of cell division used by the cells in our body, with the exception of cells located in the ovary and the testicles. Their role is to maintain the number of chromosomes in each cell division constant, enabling us to grow and self-maintain our bodies.

Why does an extra chromosome cause problems?

When a chromosome is abnormal, it can cause health problems in the body. Abnormal chromosomes most often happen as a result of an error during cell division. Chromosome abnormalities often happen due to one or more of these: Errors during dividing of sex cells (meiosis)