Your question: Which two substances are chromosomes made quizlet?

Chromosomes are made up of DNA and support proteins.

What are 2 substances make up chromosomes?

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 are chromosomes made of?

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

What does a chromosome consist of quizlet?

Chromosomes are rod-shaped structures in a eukaryotic cell’s nucleus made of DNA and proteins. Chromosome consists of two identical halves. Each half of the chromosome is called a chromatid. The less tightly coiled DNA-protein complex.

What are chromosomes made up of Class 9?

Each chromosome is made up of two components (i) Deoxyribonucleic acid (DNA) (ii) Proteins (e.g.; his tones and acidic proteins) These consist of two (unreplicated) or four (duplicated) arms and a primary constriction or centromere which gives them a particular shape due to its position.

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Which one is part of chromosome?

(1) Chromatid – one of the two identical parts of the chromosome after S phase. (2) Centromere – the point where the two chromatids touch. (3) Short arm (p). (4) Long arm (q).

What are the 2 common parts of a nucleotide?

A nucleotide consists of a sugar molecule (either ribose in RNA or deoxyribose in DNA) attached to a phosphate group and a nitrogen-containing base.

Where are chromosomes found quizlet?

Chromosomes are structures made of nucleic acids and protein, are found in the nucleus of most living cells, and carry genetic information in the form of genes. They are important because they are composed of DNA and pass on traits.

What is chromosome and its types?

Types of Chromosome

Based on the number of centromeres present. Monocentric: having only one centromere. Holocentric: having diffused centromere and microtubules are attached along the length of a chromosome. Acentric: chromosome may break and fuse together to form a chromosome without a centromere.

What are the two main divisions of the cell cycle quizlet?

The two main stages of cell division are mitosis and cytokinesis. When chromosomes become visible at the beginning of cell division, what does each chromosome consist of?

What is a pair of chromosomes called?


Humans have 23 pairs of chromosomes–22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.

What is a pair of chromosomes?

Chromosome pairing refers to the lengthwise alignment of homologous chromosomes at the prophase stage of meiosis. Most sexually reproducing organisms have two sets of chromosomes, one set inherited from each parent.

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What are chromosomes made up of class 10th?

Chromosomes are thread-like structures woven together. Each chromosome is made of proteins and a single molecule of deoxyribonucleic acid (DNA).

What is chromosome by Byjus?

Chromosome. 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.