DNA structure
DNA is shaped like a twisted ladder. This is known as what?
A double helix.
Adenine (A) and Guanine (G) are known as what kind of bases?
Purines
What are the two Purine-Pyrimidine combinations in DNA?
A-T
G-C
What is a population?
all living things living in a specific area
What are the 8 characteristics of life?
have DNA reproduce
respond to environment evolve
homeostasis gain/use energy
grow and develop have cells
Who discovered that DNA is in a double helix shape?
Rosalind Franklin
Thymine (T) and Cytosine (C) are known as what kind of bases?
Pyrimidines
Which Pyrimidine changes in RNA and what does it become?
T becomes U
A geographic area where biotic and abiotic factors all interact.
What is an autotroph?
What are the base pairs of DNA?*
Adenine (A), Thymine (T), Cytosine (C), Guanine (G)
A section of piece of a DNA code is called what?*
a gene
What kind of hydrogen bond is between A and T?
double bond
What is an abiotic factor?
Something that is not living?
What is a heterotroph?
What are the three main parts of a DNA strand?*
nitrogen bases
sugars
phosphates
What is the monomer of DNA?*
nucleotide
What kind of hydrogen bond is between G and C?
Triple bond
What is a biotic factor?
Something that is living
What are the four macromolecules of life?
Carbohydrates
Lipids
Nucleic Acids
Proteins
The three main parts of DNA (sugars, phosphates, and nitrogen bases) are connected by what?*
Hydrogen bonds
What is the monomer of proteins?*
amino acids
Purines and pyrimidines make up which one of the three main parts of DNA?
the nitrogenous base
Two species that benefit from each other.
Both do