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protein synthesis
protein synthesis quiz study
| Mutations in cells do not affect | offspring |
| Mutations in sex cells can be __________ or __________ to offspring | harmful or beneficial |
| _____ ______ removes mutant alleles from a population when they are less adaptive | Natural Selection |
| A _____ _______ substitutes one nucleotide for another | point mutation |
| A _____ ______ inserts or deletes a nucleotide in the DNA sequence | frameshift mutation |
| Chromosomal mutations affect many _____________ | genes |
| ______________ results from the exchange of DNA segments between nonhomologous chromosomes. | translocation |
| _________________directs the synthesis of all cell proteins | DNA |
| Different cells synthesize different _________ | proteins |
| monomers = _____________ ________ | amino acids |
| The bonds between amino acids are called ________ _________ | peptide bonds |
| Proteins are polymers that are also called ______________ | `polypeptides |
| A protein’s ________ is determined by the order that amino acids are joined in | shape |
| Proteins form from chains of ___________. | amino acids |
| the ___________ of a protein determines its functions | shape |
| _____________ is a membrane enclosed organelle found in eukaryotic cells | nucleus |
| Largest and most easily seen organelle | nucleus |
| What shape is a nucleus? | spherically shaped |
| What is the largest and most easily seen organelle | nucleus |
| Directs synthesis of RNA | Nucleolus |
| Forms ribosomes | Nucleolus |
| Control passage of proteins & RNA protein complexes | Nucleolus |
| Allow small molecules to diffuse easily between nucleoplasm & cytoplasm | Nucleolus |
| Separates nucleus from rest of cell Double membrane Has pores | Nuclear envelope |
| What exports RNA / RNA-protein complexes to the cytoplasm | Nucleolus |
| Your body cannot make proteins directly from | DNA |
| Info travels in ______ direction from DNA to RNA to proteins | one |
| RNA differs from DNA in three major ways. | RNA has a ribose sugar. RNA has uracil instead of thymine. RNA is a single-stranded structure |
| These 3 processes are involved in ________ ________. Replication copies DNA Transcription converts a DNA message into an intermediate molecule called RNA Translation interprets an RNA message into a string of amino acids = protein | Central Dogma |
| Transcription copies DNA to make a strand of ________. | RNA |
| The 3 types of RNA are ______________, __________________ and ____________. | Messenger RNA (mRNA), Ribosomal RNA (rRNA), Transfer RNA (tRNA) |
| Messenger RNA (mRNA) carries the message that will be translated to form a __________. | protein |
| Which type of RNA forms part of ribosomes where proteins are made. | Ribosomal RNA (rRNA) |
| Which form of RNA brings amino acids from the cytoplasm to a ribosome. | transfer RNA (tRNA) |
| RNA __________ and other proteins form a transcription complex. | polymerase |
| RNA polymerase bonds the ____________ together. | nucleotides |
| Nucleotides pair with one strand of the _________. | DNA |
| Replication copies all the | DNA |
| transcription copies a _______. | gene |
| Replication makes __________ copy. | one |
| transcription makes _________ copies. | many |
| Ribosome Assemble ________________ _____________ to form specific proteins | amino acids |
| _______________ converts an mRNA message into a polypeptide, or protein. | translation |
| A ___________ is a sequence of three nucleotides that codes for an amino acid. | codon |
| The genetic code ______________ each codon to its amino acid or function. | matches |
| An _____________ is a set of three nucleotides that is complementary to an mRNA codon. | anticodon |
| _______________ mutations tend to have a big effect | Chromosomal |
| Mutations may or may not affect ________________. | phenotype |
| Some gene mutations can change or not affect _____________. | phenotype |
| A mutation may cause a ____________ ___________ _____________. | premature stop codon. |
| A mutation may change ___________ shape or the active site. | protein |
| A mutation may change ________________ . | gene regulation |
| A mutation may be ___________. | silent |
| A mutation may occur in a _________________ ___________. | noncoding region |
| A mutation may not affect protein folding or the _________ _______. | active site. |
| ________________ are changes in DNA that may or may not affect phenotype | Mutations |
| Some mutations affect a single gene, while others affect an entire __________. | chromosome |
| The GENETIC CODE is determined by the order of the _______ in the gene | bases |
| DNA is made up of repeating molecules called ______________. | NUCLEOTIDES |
| __________ nucleotides make up a double-stranded DNA molecule, they are ________________________________________________. | Four Adenine Thymine Cytosine Guanine |
| units of genetic material that CODES FOR A SPECIFIC TRAIT | genes |