Your question: What do you mean by chromosomes Class 8?

A chromosome is a DNA molecule that consists of a part or all of the genetic material of an organism. The chromosome is present in the nucleus of each cell, and it is packaged into thread-like structures. … All living organisms have chromosomes; humans have 23 pairs of chromosomes.

What is chromosome in Class 8?

Answer: Chromosomes are found in the nucleus of a cell. Function: Chromosomes carry genes and help to transfer characters from the parents to the offspring.

What is chromosome Class 8 Short answer?

“A Chromosome looks like a thread and is coiled material, made of proteins. Chromosomes are present in the nucleus of all the cells and contain the basic genetic material DNA, which passes from one generation to another”.

What do you mean by 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 a chromosome short answer?

Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made of protein and a single molecule of deoxyribonucleic acid (DNA). Passed from parents to offspring, DNA contains the specific instructions that make each type of living creature unique.

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What are chromosomes in Class 9?

Chromosomes are the genetic material present in all cells. They are present in the nucleus of a eukaryotic cell. They are a thread-like structure. Each chromosome of a eukaryotic cell contains DNA and associated proteins, known as histone proteins.

What is a chromosome Class 10?

Hint: Chromosomes are thread-like structures which are located inside the nucleus of the cell and each of these chromosomes are made up of proteins and deoxyribonucleic acid (DNA) which is passed on from one generation to another.

What is chromosome in biology class 12?

Chromosomes are thread-like structures within which DNA is tightly packaged in the nucleus. It can also be defined as a DNA molecule with part or all of the genetic material of an organism.

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 the best definition of a chromosome?

[ (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.

What is chromosome in a sentence?

A chromosome is a part of a cell in an animal or plant. It contains genes which determine what characteristics the animal or plant will have. Each cell of our bodies contains 46 chromosomes.

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What is chromosome and its function?

Chromosomes are thread-like structures present in the nucleus, which carries genetic information from one generation to another. They play a vital role in cell division, heredity, variation, mutation, repair and regeneration.

How do you name chromosomes?

The chromosome on which the gene can be found. The first number or letter used to describe a gene’s location represents the chromosome. Chromosomes 1 through 22 (the autosomes) are designated by their chromosome number. The sex chromosomes are designated by X or Y.