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level: Level 1 of DNA and the Production of Proteins

Questions and Answers List

level questions: Level 1 of DNA and the Production of Proteins

QuestionAnswer
Why can't the DNA leave the nucleus?it could get lost or damaged
Why can't the DNA leave the nucleus?it could get lost or damaged
Why can't the DNA leave the nucleus?it could get lost or damaged
Chromosomes descriptionthread like structures found in the nucleus that contain genetic information, they are made up of long coiled strands of DNA
genes descriptionsections of DNA containing coded instructions for making a specific protein, each chromosome contains multiple genes which can be seen as a band pattern in chromosomes which have been stained
What are the rungs of the DNA ladder?DNA bases - it's the DNA bases that hold the genetic code
What are DNA bases?chemical units which bond as complemetery base pairs to hold the double helix together
What is the backbone of DNA made of?sugar phosphate backbone
base pairsmall chemical units which make up DNA joined like rungs on a ladder
DNAchemical which contains the genetic code
geneunit of inheritance which controls a characteristic
chromosomethread like structures found in the nucleus
nucleusorganelle in cells which contains genetic information
cellbasic unit of living things
organismliving being made of single or many cells
What are proteins?long chains of amino acids folded into a specific shape
What are the building blocks of a protein?amino acids
How many amino acids are there?20
How is the order of amino acids determined?by the DNA sequence
How are bases arranged?in triplets
What does each triplet of base pairs code for?a single amino acid
What holds amino acids together?peptide bonds
What is mRNA?a copy of the DNA sequence
What does mRNA do?takes the copied instructions out of the nucleus and into the cytoplasm, it is 'read' by the ribosome which uses the code to make the protein from amino acids
What is mRNA a complementary copy of?one of the DNA strands
How many molecules of DNA are there in a chromosome?1
Why can't the DNA leave the nucleus?it could get lost or damaged