Understanding The Structure Of DNA

Question 1

DNA structure fact

Answer 1

-double helix
-Made up of two separate strands which are complimentary to each other in stuck together
-Coding strand contains the instructions for making proteins
-each strand of DNA is made up of many repeating units

Question 2

What is a nucleotide made up of?

Answer 2

A base, a phosphate, deoxyribose sugar

Question 3

What makes up the sugar phosphate backbone

Answer 3

Alternating sugars and phosphates

Question 4

What are the 4 nitrogenous bases found in DNA

Answer 4

-adenine
-thymine
-guanine
-cytosine

Question 5

What bond is in deoxyribose

Answer 5

-phosphodiester

Question 6

How are nucleotides joined together

Answer 6

Through a series of condensation reactions to form a polynucleotide
(Still produces a water molecule)

Question 7

What is a genome

Answer 7

An organism is complete set of DNA including all of its genes

Question 8

What is a proteome

Answer 8

All of the different proteins that can be produced by a cells genome

Question 9

What is a homologous pair

Answer 9

Pairs of chromosomes which have the same genes at the same loci
(One is inherited maternally and the other is inherited paternally)