Card 41
Question
Rosalind Franklin
Answer
Scientist who generated x-ray images of DNA, she provided Watson and Crick with key data about DNA
SACE Biology Topic 1
DNA and Proteins
- Subject
- Sciences / Biology
- Language of creation
- English
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Cards in this set
Card 42
Question
hydrogen bond
Answer
the bonds formed between bases in double-stranded DNA
Card 43
Question
antiparallel
Answer
The opposite arrangement of the sugar-phosphate backbones in a DNA double helix.
Card 44
Question
46
Answer
The number of chromosomes in human cells
Card 45
Question
rRNA
Answer
ribosomal RNA
Card 46
Question
tRNA
Answer
transfer RNA; type of RNA that carries amino acids to the ribosome
Card 47
Question
protein synthesis
Answer
the formation of proteins by using information contained in DNA and carried by mRNA
Card 48
Question
Codon
Answer
A specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid
Card 49
Question
Anticodon
Answer
group of three bases on a tRNA molecule that are complementary to an mRNA codon
Card 50
Question
Triplet
Answer
group of three bases on the template strand of DNA that are complementary to the triplet that occurs on mRNA
Card 51
Question
template strand
Answer
the strand of DNA that specifies the complementary mRNA molecule
Card 52
Question
coding strand
Answer
the strand of DNA that is not used for transcription and is identical in sequence to mRNA, except it contains thymine instead of uracil
Card 53
Question
AUG
Answer
start codon (methionine)
Card 54
Question
Universality of DNA
Answer
All organisms use the same genetic code.
Card 55
Question
primary structure
Answer
The first level of protein structure; the specific sequence of amino acids making up a polypeptide chain.
Card 56
Question
secondary structure
Answer
Alpha helices and beta pleated sheets are formed when amino acids in the polypeptide chain form bonds with other amino acids
Card 57
Question
tertiary structure
Answer
Further folding of the polypeptide to give protein its shape
Card 58
Question
quaternary structure
Answer
The fourth level of protein structure; the shape resulting from the association of two or more polypeptide subunits.
Card 59
Question
Enzymes
Answer
proteins that act as biological catalysts
Card 60
Question
Receptors
Answer
Proteins or glycoproteins in that are complementary in shape to messenger molecules
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