Question: What are chromosomes in simple words?

(KROH-muh-some) A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.

What is a chromosome kid definition?

Say: kro-muh-soamz. Your body is made up of billions of cells, which are too small to see without a strong microscope. Inside most of those cells are chromosomes, which are thread-like strands that contain hundreds, or even thousands, of genes. Genes determine physical traits, such as the color of your eyes.

What is chromosome in your own words?

A chromosome is a strand of DNA that is encoded with genes. In most cells, humans have 22 pairs of these chromosomes plus the two sex chromosomes (XX in females and XY in males) for a total of 46.

What is a chromosome and its function?

Chromosomes are composed of DNA, histones, non-histone proteins, RNA and nucleic acids that help in the overall functioning of the cell for growth, reproduction and survival. Chromosomes have huge participation in body processes like cell division, replication, and creation of daughter cells.

What is the meaning of chromosomes in science?

[ (kroh-muh-sohmz) ] The small bodies in the nucleus of a cell that carry the chemical “instructions” for reproduction of the cell. They consist of strands of DNA wrapped in a double helix around a core of proteins. Each species of plant or animal has a characteristic number of chromosomes.

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What are some examples of chromosome?

Examples of chromosomal disorders

  • Down’s syndrome or trisomy 21.
  • Edward’s syndrome or trisomy 18.
  • Patau syndrome or trisomy 13.
  • Cri du chat syndrome or 5p minus syndrome (partial deletion of short arm of chromosome 5)
  • Wolf-Hirschhorn syndrome or deletion 4p syndrome.
  • Jacobsen syndrome or 11q deletion disorder.

How many genes are in a chromosome?

Chromosome 1 likely contains 2,000 to 2,100 genes that provide instructions for making proteins.

What are the 2 main types of chromosomes?

Autosomes – There are 22 pairs of autosomes in humans. These code for most of the genetic traits in the body. Gonosomes or sex chromosomes – Humans contain two types of sex chromosomes including X and Y. While males have an X and a Y chromosome, females possess two X chromosomes.

What are the 4 types of chromosomes?

On the basis of the location of the centromere, chromosomes are classified into four types: metacentric, submetacentric, acrocentric, and telocentric.

What is the best definition of chromosomes?

(KROH-muh-some) A structure found inside the nucleus of a cell. A chromosome is made up of proteins and DNA organized into genes. Each cell normally contains 23 pairs of chromosomes.

What is the main function of a chromosome?

The most important function of chromosomes is to carry the basic genetic material – DNA. DNA provides genetic information for various cellular functions. These functions are essential for growth, survival, and reproduction of the organisms. Histones and other proteins cover the Chromosomes.

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