Topic 4

Question 1

Central dogma

Answer 1

DNA —transcription-> RNA —translation-> Protein
(Dogs can’t race lazy people)

Process: instructions in DNA converted into functional product

Question 2

Where is DNA info stored?

Answer 2

In the nucleotide sequence

Question 3

Genotype

Answer 3

DNA sequence of an organism

Question 4

Phenotype is the result of?

Answer 4

Protein production aka gene expression

Question 5

What is the link between genotype and phenotype?

Answer 5

Proteins

Question 6

What is the intermediate between genes and the proteins for which they code?

Answer 6

RNA

Question 7

Transcription

Answer 7

DNA-directed synthesis of RNA

Produces messenger RNA

Question 8

Translation

Answer 8

Synthesis of a polypeptide

Occurs under directions of mRNA

Occurs on ribosomes

Question 9

Differences in gene expression between Prokaryotes and Eukaryotes

-prokaryotes

Answer 9

-no nuclear envelope to separate transcription and and translation

-mRNA produced by transcription is immediately translated
(No RNA processing)

-translation can start before end of transcription