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Biology 12: Unit 3- Protein synthesis > Crossword > Flashcards

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1

Insulin

For diabetic patients
Can be synthesized by bacteria that have undergone recombinant DNA process

2

Termination

Final phase of translation
Amino acid released from ribosome

3

Deletion

Gene mutation where nucleotide is removed from a gene

4

Hydrogen bonds

Form between nitrogenous bases in DNA molecule

5

RNA

Single stranded molecule

6

Transcription

Creating an mRNA strand from a DNA molecule

7

Double helix

Shape of DNA molecule

8

Vector

Something that can get DNA from one species into the cells of another species
Eg. Virus

9

Mutagen

Any factor that causes mutation

10

Substitution

Gene mutation where one nucleotide is replaced by a different nucleotide

11

Nucleic acid

DNA and RNA

12

Replication

Process of DNA making copies of itself

13

Initiation

First phase of translation where mRNA and first tRNA join up with small ribosomal subunit

14

Nucleus

DNA is found here of eukaryotic cells

15

Polysome/ poly ribosome

Many ribosomes can be translating a single mRNA strand at the same time

16

RNA polymerase

Enzyme that adds nucleotides to the growing strand during transcription

17

Purine

Nitrogenous base with double ring structure

18

Histones

Proteins that associate with DNA to form chromosomes

19

Helicase

Enzyme that “unzips” DNA strand during replication

20

Nucleotide

A DNA subunit made up of 3 components

21

Anticodon

3 letter sequence of tRNA that is complimentary to mRNA codon

22

tRNA

Type of RNA that delivers amino acids to ribosomes

23

Chromosomal deletions

Occur when entire portions of chromosomes are removed

24

Mutation

A change in the base-pair sequence of a DNA molecule