Card 21
Question
Deoxyribose
Answer
A five-carbon sugar that is a component of DNA nucleotides
SACE Biology Topic 1
DNA and Proteins
- Subject
- Sciences / Biology
- Language of creation
- English
113 flashcards
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Cards in this set
Card 22
Question
nitrogenous base
Answer
A molecule found in DNA and RNA that encodes genetic information in cells.
Card 23
Question
complementary base pairing
Answer
In DNA, T pairs with A; G pairs with C and in RNA, U pairs with A and G pairs with C
Card 24
Question
double helix
Answer
Shape of DNA
Card 25
Question
Cytosol
Answer
Fluid portion of cytoplasm
Card 26
Question
Cytoplasm
Answer
A jellylike fluid inside the cell in which the organelles are suspended
Card 27
Question
Nucleus
Answer
Control center of the cell
Card 28
Question
Gene
Answer
A segment of DNA on a chromosome that codes for a specific trait
Card 29
Question
Circular chromosome
Answer
A chromosome found in bacteria
Card 30
Question
Histones
Answer
protein molecules around which DNA is tightly coiled in chromatin
Card 31
Question
Chromatin
Answer
Substance found in eukaryotic chromosomes that consists of DNA tightly coiled around histones
Card 32
Question
Introns
Answer
Noncoding segments of nucleic acid that lie between coding sequences.
Card 33
Question
Exons
Answer
Coding segments of eukaryotic DNA.
Card 34
Question
Splicing
Answer
removal of introns
Card 35
Question
mRNA
Answer
messenger RNA
Card 36
Question
mature mRNA
Answer
mRNA after splicing has occurred
Card 37
Question
peptide bond
Answer
covalent bond formed between amino acids
Card 38
Question
nuclear pores
Answer
small holes in the nuclear envelope
Card 39
Question
Methylation
Answer
the addition of a methyl group to cytosine to affect the transcription of a protein
Card 40
Question
Crick and Watson
Answer
the two scientists who discovered the structure and shape of DNA with the help of Franklin and Wilkins
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