What is the difference between a chromosome and a DNA molecule?

How is DNA different than a chromosome?

DNA is the smallest part that, together with proteins, forms a chromosome. A chromosome is therefore, nothing but a chain of DNA that has been made compact enough to fit into a cell. 2. A chromosome is a subpart of a person’s genes, while DNA is a part of the chromosome.

What is the difference between a chromosome and a DNA molecule quizlet?

The difference between a chromosome and DNA

A chromosome is made of both one DNA molecule wound around small protein molecules whereas DNA is just one large molecule called deoxyribose nucleic acid.

Is a chromosome a DNA molecule?

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).

What is the relationship between a DNA molecule and a chromosome?

The chromosomes serve as the structure that holds the DNA. The DNA acts as a complete set of instructions that tells our bodies how to develop. Storing more data than any computer, each chromosome contains all the information needed to give you a base for your physical (and emotional) characteristics.

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What is a DNA molecule?

Deoxyribonucleic acid (DNA) is a molecule that encodes an organism’s genetic blueprint. … DNA is a linear molecule composed of four types of smaller chemical molecules called nucleotide bases: adenine (A), cytosine (C), guanine (G), and thymine (T). The order of these bases is called the DNA sequence.

How many DNA molecules are in a chromosome?

Each chromosome contains a single very long, linear DNA molecule. In the smallest human chromosomes this DNA molecule is composed of about 50 million nucleotide pairs; the largest chromosomes contain some 250 million nucleotide pairs. The diploid human genome is thus composed of 46 DNA molecules of 24 distinct types.

What is the relationship between DNA and chromosomes quizlet?

DNA contains the instructions, genes, to make proteins that tell what genetic traits the person will have. The DNA along with the proteins make up the chromosomes. The chromosomes are then passed on to the offspring, and with the DNA inside the chromosomes and translation of the genes, its traits are decided.

What is the difference between the terms chromosome and chromatid quizlet?

A chromatid is one half of a replicated chromosome, whereas a chromosome consists of DNA wrapped around proteins in a highly organized manner.

What are the differences between genotypes and phenotypes?

Genotype versus phenotype. An organism’s genotype is the set of genes that it carries. An organism’s phenotype is all of its observable characteristics — which are influenced both by its genotype and by the environment. … For example, differences in the genotypes can produce different phenotypes.

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Is the gene part of a DNA molecule or the whole DNA molecule?

Structure of DNA

A chromosome contains many genes. A gene is a segment of DNA that provides the code to construct a protein. The DNA molecule is a long, coiled double helix that resembles a spiral staircase.

Are chromosomes separate strands of DNA?

Image of a long, double-stranded DNA polymer, which wraps around clusters of histone proteins. The DNA wrapped around histones is further organized into higher-order structures that give a chromosome its shape. … Instead, it’s broken up into separate, linear pieces called chromosomes.