Describe the relationship between DNA, chromosomes, and genes,

Biology

1 answer:

damaskus [11]2 years ago

6 0

Explanation:

A chromosome is a structure that is made of a chemical known as deoxyribonucleic acid, or DNA as well as protein. Chromosomes are found in the nucleus of cells. Chromosomes contain many genes.

A gene is a molecular unit of heredity. Each gene codes for a polypeptide, which becomes a protein that performs a function in a living thing. The DNA molecules are very long and in order to fit inside the nucleus of a cell, they are highly coiled and condensed. During sexual reproduction, one haploid set of chromosomes is given to the offspring from each parent, forming a diploid amount of chromosomes in the offspring.

Since chromosomes contain all of our genes, an organism that reproduces sexually gets a combination of genes from both parents. Genes that are expressed produce an organism's phenotype.

You might be interested in

Respiratory system individual parts

Allisa [31]

Lungs, nose, airway, mouth, pharynx, larynx,trachea,bronchi, and bronchioles. Its three of those but thats all i could think of from the top of my head. Good luck

6 0

2 years ago

Metamorphosis is a type of homeostasis. <br> a. True<br> b. False

Vsevolod [243]

Metamorphosis is a type of homeostasis. A. is the correct answer.

4 0

2 years ago

The amount of strain placed on blood vessels as blood moves through them is known as

inn [45]

Answer:

Blood flow!

Explanation:

Blood flow is the volume of blood flowing through any given vessel, or through the circulatory system as a whole, per minute. This is also called cardiac output, and it's determined by the blood volume pumped during one beat and the number of beats per minute.

Hope this helps! :3

6 0

3 years ago

A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new

Ahat [919]

Answer:

The predictive value of a positive test is:

B. 18.2%

Explanation:

5 0

2 years ago

Explain how the body can shift the flow of blood from one organ system to another

Len [333]

Answer: The redirection of blood flow from one organ system to another is an outcome of coordinated vasomotion – constriction of precapillary sphincters and capillary blood vessels in tissues where blood flow is discouraged, and dilation in tissues where blood flow is promoted.

Explanation:

5 0

2 years ago