Which best describes a gene

Biology

2 answers:

Katyanochek1 [597]4 years ago

8 0

different allele forms of a trait

motikmotik4 years ago

5 0

Answer;

a segment of chromosomal DNA

Explanation;

A gene is a hereditary unit consisting of a sequence of DNA that occupies a specific location on a chromosome and determines a particular characteristic in an organism. Genes undergo mutation when their DNA sequence changes.

It is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. However, many genes do not code for proteins.

Alleles are forms of the same gene with small differences in their sequence of DNA bases. These small differences contribute to each person’s unique physical features.

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Sam and Jenny ride their bikes at a constant velocity of 3 miles per hour Net force:

stiv31 [10]

Sam and Jenny ride their bikes at a constant velocity of 3 miles per hour.

Explanation:

Here we see that both of them are moving at a constant velocity which means their speed is constant and they are moving in a straight line.

Zero acceleration is implied on the bikes and the net force is BALANCED.

When forces are in balance, acceleration is zero. Velocity is constant and there is no net or unbalanced force.

4 0

3 years ago

Describe the structure of atoms,including the masses, electrical charges, and locations of protons, neutrons and electrons.

Lana71 [14]

Everything on earth is made up of a fundamental particles that is impossible to see with the naked eye this particle is called the atom. There a over a 100 atoms or more in science. At the center of the atom is the nucleus which contains protons and neutrons. Electrons can be found moving around the orbitals or energy levels , while most of the area outside the nucleus is empty space .

Most of the mass of an atom is concentrated at the center of the nucleus.

Atoms are made up of three subatomic particles called

1. Protons

2. Neurons

3. Electrons

protons - has positively charge particles with a charge

of +1

Neutrons- has no charge it is neutral, 0 charge.

Electrons- has a negative charge particles with an charge of -1.

Relative mass of a particle is the mass compared to the mass of a proton

Relative charge of a particle is the charge compared to the charge on a proton.

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