Protein Synthesis

Question 1

What are the 2 stages of protein synthesis? (2)

Answer 1

1. Transcription

2. Translation

Question 2

Describe the process of transcription. (2)

Answer 2

1. Double helix “un-zipped” and one strand is read and copied in the form of mRNA
2. mRNA leaves the nucleus and into cytoplasm where it attaches to ribosome

Question 3

Differences between mRNA ansd DNA? (3)

Answer 3

1. mRNA uses uracil (U) instead of T
2. small enough to get through pores in membrane around nucleus.
3. Single strand

Question 4

Describe process of translation. (2)

Answer 4

1. mRNA carries genetic code to ribosome

2. amino acids joined together by ribosome in order of the triplets in mRNA