Anatomy

2. Structures composed of tightly coiled DNA strands and associated with histones
3. the process by which a sequence of nucleotide triplets in a messenger RNA molecule gives rise to a specific sequence of amino acids during synthesis of a polypeptide or protein.
5. a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.
6. a minute particle consisting of RNA and associated proteins, found in large numbers in the cytoplasm of living cells
7. Two strands in a double helix and held together by hydrogen bonds
8. Synthesis the process whereby biological cells generate new proteins
9. Polymerase an enzyme that produces primary transcript RNA
11. the point on a chromosome by which it is attached to a spindle fiber during cell division
13. Activation This process is crucial in growth and development.
14. a sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.
15. an adaptor molecule composed of RNA, typically 73 to 94 nucleotides in length, that serves as the physical link between the nucleotide sequence of nucleic acids
16. a segment of a DNA or RNA molecule that does not code for proteins and interrupts the sequence of genes.
17. Proteins associated with the DNA of the nucleus
19. a large family of RNA molecules that convey genetic information from DNA to the ribosome

1. the process by which genetic information represented by a sequence of DNA nucleotides is copied into newly synthesized molecules of RNA, with the DNA serving as a template.
3. Strand the sequence of DNA that is copied during the synthesis of mRNA.
4. Strand the DNA strand which has the same base sequence as the RNA transcript produced
8. a region of a DNA molecule that forms the site at which transcription of a gene starts.
10. Two thread-like strands into which a chromosome devides longitudinally during cell division
11. a sequence of three nucleotides that together form a unit of genetic code in a DNA or RNA molecule.
12. the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes.
13. Code the nucleotide triplets of DNA and RNA molecules that carry genetic information in living cells.
18. a segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.