Term
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Definition
| Sugar, phosphate, nitrogenous bases (A,C,T,G) |
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Term
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Definition
1. DNA helicase unwinds/unzips double helix – strands separated
2. DNA polymerase link floating DNA nucleotides with complementary N bases on each strand
3. Covalent bonds join nucleotides above/below, hydrogen bonds form BETWEEN complementary N bases
4. Creates one parent one daughter strands |
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Term
| How codes are used to make proteins |
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Definition
| Codes in DNA are translated at the nucleus, and then sent to ribosomes for transcription and then they can be read to make proteins |
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Term
| Relationship between cell, nucleus, chromosomes, genes, DNA and RNA |
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Definition
Transcription: happens in the nucleus where RNA polymerase unzips DNA, then base pairs RNA nucleotides to make mRNA. At the ribosome, mRNA goes through ribosome. tRNA brings amino acids according to mRNA message. tRNA anticodons pair with mRNA codons, creating a polypeptide chain. |
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Term
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Definition
| Unit of heredity passed from parent to offspring |
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Term
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Definition
| Slight or drastic change in the gene structure |
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Term
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Definition
Different cells have different functions, thus “turning on/off” genes that are needed/unneeded. |
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