A
What do the letters GMO stand for?
Genetically Modified Organisms
What is the basic physical and functional unit of heredity, acting as a specific segment of DNA that provides instructions for making proteins or molecules in the body?
A gene
What is the shape of a DNA molecule?
Double helix
If one side of a DNA strand is ATTGCA, what is the complementary strand?
TAACGT
What is the main function of DNA?
To store genetic information
How many pairs of chromosomes have humans?
23 pairs of chromosomes
What is heredity?
the passing of traits from parent to offspring
Where is DNA found in a cell?
Nucleus
What holds the two strands of DNA together in the middle?
Hydrogen bonds
What is the process of creating an identical copy of a DNA molecule called?
Replication
According to base-pairing rules, Adenine (A) always pairs with:
Thymine
Which of the following is NOT a nitrogen base in DNA?
Uracil (is in RNA)
What three components make up a single nucleotide?
Phosphate, Sugar, Base
What do the letters DNA stands for?
Deoxyribonucleic acid
If a DNA molecule is found to be composed of 40% thymine, what percentage of guanine would be expected?
10%
What do the letters RNA stand for?
Ribonucleic acid
What is the name of the famous X-ray diffraction image that revealed the double helix structure of DNA?
Photo 51