Unit 4, topic 1.3: Gene expression

Question 1

Structural genes

Answer 1

code for any proteins except regulatory genes

Question 2

Regulatory genes

Answer 2

codes for proteins and other small molecules (microRNA), that control the expression of structural genes

Question 3

Genes

Answer 3

sections of DNA which code for proteins, expressed when they are transcribed into mRNA, then translated into a protein

Question 4

Genome

Answer 4

Contains all genetic material in haploid set of chromosomes in an organism, including all its genes and DNA sequences

Question 5

Exons and their roles

Answer 5

a segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence

Question 6

Introns and their roles

Answer 6

Any nucleotide sequence with a gene that is not expressed or operative in the final RNA sequence

Introns make it possible to generate multiple proteins from a single genes