Best answer: How can you best describe a chromosome?

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.

How do we define chromosome?

(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.

How would you describe chromosomes 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 describes a human chromosome?

A chromosome is an organized package of DNA found in the nucleus of the cell. … Humans have 23 pairs of chromosomes–22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.

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How do you describe the structure of a chromosome?

Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure. Chromosomes are not visible in the cell’s nucleus—not even under a microscope—when the cell is not dividing. … DNA and histone proteins are packaged into structures called chromosomes.

What does a chromosome look like?

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.

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.

How do you explain chromosomes to a child?

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 a chromosome like in real life?

Chromosomes are tiny structures inside cells made from DNA and protein. The information inside chromosomes acts like a recipe that tells cells how to function and replicate. … Your chromosomes describe what color eyes you have, how tall you are, and whether you’re a boy or a girl.

What can chromosomes tell us?

Chromosomes are structures that contain thousands of genes (Picture 1). Genes tell the body how to grow and work. Genes also hold information about traits, such as our eye and hair color and blood type. Each cell normally has 46 chromosomes that are arranged in 23 pairs.

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What chromosome is a male?

Each person normally has one pair of sex chromosomes in each cell. The Y chromosome is present in males, who have one X and one Y chromosome, while females have two X chromosomes.

Do men have XX or XY chromosomes?

Typically, biologically male individuals have one X and one Y chromosome (XY) while those who are biologically female have two X chromosomes.

Which of the following best describe a microtubule?

Microtubules—hollow rods constructed from globular proteins called tubulins—shape and support the cell and serve as tracks along which organelles equipped with motor proteins can move.

What is chromosome structure and composition?

Chromosomes are double-stranded helices, consisting of two long biopolymers made of simpler units called nucleotides—each nucleotide is composed of a nucleobase (guanine, adenine, thymine, and cytosine), recorded using the letters G, A, T, and C, as well as a backbone made of alternating sugars (deoxyribose) and …

What are the 3 different structures of chromosomes?

There are four main types of chromosomes: metacentric, submetacentric, acrocentric, and telocentric. Chromosomes are found within the nucleus of most living cells and consist of DNA that is tightly wound into thread-like structures.

What is chromosome structure and 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.