Genes/tics Flashcards Preview

DNA, RNA and Protein Synthesis - Biology - Alevel > Genes/tics > Flashcards

Flashcards in Genes/tics Deck (13)
1

What is it called when DNA controls characteristics by controlling protein synethesis?

Gene expression

2

Expression is split into 2 main parts...

Translation.
Transcription.
Involves nucleic acid RNA.

3

Name 4 differences between RNA and DNA?

RNA made of ribose nucleotides instead of deoxyribose nucleotides.
RNA has base uracil instead of thymine.
RNA is single stranded.
RNA shorter than DNA.

4

Name RNA's 4 bases.

A, U, G, C.

5

Define gene.

Sequences of DNA bases that codes for either a polypeptide or functional RNA.

6

What does the sequences of amino acids in a polypeptide chain form?

Primary structure of a protein.

7

What do different polypeptides have?

Different number and order of amino acids.

8

What determines the order of amino acids in a polypeptide?

The order of the bases in a gene.

9

What is each amino acid coded for?

By a sequence of 3 bases in a gene called triplet or a codon.

10

What are genes called that don't code for a polypeptide code?

Functional RNA.

11

What is functional RNA?

Is RNA molecules other than mRNA, which preform special tasks during protein synethesis.

12

What is a complete set of genes known as?

Genome.

13

What is the full range of proteins that the cell is able to produce known as?

Proteome.