Table of Contents
- 1 Are the sides of the DNA molecule are made up of repeating nitrogen bases and sugars?
- 2 Is A nucleotide made up of sugar phosphate and two nitrogen bases?
- 3 What are the strands of DNA made up of?
- 4 What molecules make up the rungs of DNA?
- 5 What are the DNA ladder rungs made of?
- 6 Where is DNA located in an eukaryotic cell?
Are the sides of the DNA molecule are made up of repeating nitrogen bases and sugars?
The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases.
What makes up each side of DNA?
The double helix looks like a twisted ladder—the rungs of the ladder are composed of pairs of nitrogenous bases (base pairs), and the sides of the ladder are made up of alternating sugar molecules and phosphate groups. Molecules of DNA range in length from hundreds of thousands to millions of base pairs.
Is A nucleotide made up of sugar phosphate and two nitrogen bases?
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. The bases used in DNA are adenine (A), cytosine (C), guanine (G), and thymine (T).
What type of bonds hold nitrogen bases together forming the rings of the DNA ladder?
Tor F – Covalent bonds hold nitrogen bases together, forming the rings of the DNA ladder.
What are the strands of DNA made up of?
The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups. Attached to each sugar is one of four bases–adenine (A), cytosine (C), guanine (G), and thymine (T).
What is a nucleotide made up of?
A molecule consisting of a nitrogen-containing base (adenine, guanine, thymine, or cytosine in DNA; adenine, guanine, uracil, or cytosine in RNA), a phosphate group, and a sugar (deoxyribose in DNA; ribose in RNA).
What molecules make up the rungs of DNA?
Other combinations of the atoms form the four bases: thymine (T), adenine (A), cytosine (C), and guanine (G). These bases are the rungs of the DNA ladder.
What bonds hold DNA bases together?
Hydrogen bonds exist between the two strands and form between a base, from one strand and a base from the second strand in complementary pairing. These hydrogen bonds are individually weak but collectively quite strong.
What are the DNA ladder rungs made of?
nitrogen bases
They showed that alternating deoxyribose and phosphate molecules form the twisted uprights of the DNA ladder. The rungs of the ladder are formed by complementary pairs of nitrogen bases — A always paired with T and G always paired with C.
How many nitrogen bases are there in DNA?
4 Possible nitrogen bases. Adenine (A), Guanine (G), Cytosine (C), Thymine (T) Complementary base pairs. so DNA has 4 possible nucleotides…bases on one strand determine the bases on the other strand.
Where is DNA located in an eukaryotic cell?
DNA holds genetic information that determines an organisms traits. DNA contains the instructions for making proteins. Where is DNA? in the nucleus in every eukaryotic cell.
What does DNA stand for in scientific terms?
What is DNA? DNA stands for Deoxyribonucei Acid. DNA holds genetic information that determines an organisms traits. DNA contains the instructions for making proteins. Where is DNA? in the nucleus in every eukaryotic cell.