The complete DNA instruction book, or genome, for a human contains about 3 billion bases and about 20,000 genes on 23 pairs of chromosomes
Because carbon atoms can form stable bonds with four other atoms, they are uniquely suited for the construction of complex molecules. These complex molecules are typically made up of chains and rings that contain hydrogen, oxygen, and nitrogen atoms, as well as carbon atoms.
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
The gene is the basic physical and functional unit of heredity. It consists of a specific sequence of nucleotides at a given position on a given chromosome that codes for a specific protein (or, in some cases, an RNA molecule).

Explanation:

I hope it's help

3 0

2 years ago

MrRissso [65]

Answer:

system tissue cellular organ molecular organism atomic

Explanation:

i think

3 0

2 years ago

aev [14]

Answer:

The latest medical advances are too expensive for all but the most prosperous of Avalon's citizens.

6 0

3 years ago

vichka [17]

Answer:

B. Infectious mononucleosis.

Explanation:

Splenic enlargement is why when you have mono you're on bedrest & have to avoid activities like sports...so you don't rupture your spleen.

A. Eating before competition wouldn't affect your spleen

C. Hematuria is blood in your urine, so that would be kidneys/bladder

D. Cirrhosis involves your liver.

5 0

2 years ago