A Flashcards
Directs the activities of a cell by guiding the formation of both structural and enzymatic proteins.
Nucleic acids as RNA and DNA
Who found that DNA is the genetic material that replicates and is passed down from generation to generation?
Oswald Avery, Colin MacLeod, and Maclyn McCarty
Nuclei acids form _____.
Genes
Primary nucleic acid in most organisms; contains all the information needed for almost all a cell’s activities.
DNA
Alfred Hershey and Matha a Chase concluded that ___ controls _______ activity by influencing the production of __________.
DNA cellular enzymes
Assembled info about DNA’s components and made a model of it.
Watson and Crick
A double helix (spiral) consisting of 2 strands attached at regular intervals; a double chain polymer of nucleotides.
DNA
What are the 3 components of nucleotides?
1 sugar
2 phosphate
3 base
Nucleotides are arranged so ______ and _________ form one long side piece of the ladder with the bases pointing off to one side forming half of the ladder rung.
Sugars and phosphates
Adenine uses __ hydrogen bonds
2
Cytosine uses __ hydrogen bonds
3
What are the 2 principle actions of genes?
1passing along genotype from generation to generation
2””””””””””””””” phenotype””””””””””””””
DNA replication changes based on ______.
Order
The sequence of bases in DNA forms a specific code that directs the sequence of _______ ________ in protein molecules that the cell produces.
Amino acids
The copy must be an exact duplicate otherwise…
An improper protein will be made
