Protein Synthesis

Question 1

Introns meaning

Answer 1

Non coding base seauence of DNA found within a gene

Question 2

Role of trna

Answer 2

Carry soecific amino acid to ribosomse

Question 3

Genome

Answer 3

Complete set of genes in a cell

Question 4

Loci

Answer 4

Position iv a gene within chromosome

Question 5

Allele

Answer 5

Different version of a geme

Question 6

Genetic code

Answer 6

Universal- same 3 bases on DNA code for the same amino acid in all organisms
Non overlaping- each base read once in a triplet
Degenerate- more than one triplet codes for an amino acid

Question 7

3 mutagenic agent

Answer 7

X-rays
Dna reactice chemicals (benzene, bromine)
Biological agents (virus and bacterica)

Question 8

Define genetic diversity

Answer 8

Number of different alleles of genes in a population

Question 9

Give 2 types of molecule from which a ribosome is made

Answer 9

Rna
Protein

Question 10

Translation

Answer 10

mRNA Attaches to ribosome
tRNA anticodons bind to complementary mRNA codons
tRNA brings specific amino acid
Amino acids joined by a peptide bond
Amino acid join together with the use of ATP
tRNA released
Ribosome moves along the mRNA to form the polypeptide