|  
 |  
  
 
|  
5 
 |  
 
programmed cell death 
 |  
  
 
|  
6 
 |  
 
loosely wound DNA present during interphase 
 |  
  
 
|  
7 
 |  
 
symmetry seen in animals that have both right and left sides 
 |  
  
 
|  
8 
 |  
 
a group of homeobox genes only present in animals 
 |  
  
 
|  
12 
 |  
 
when a section of one chromosome breaks off and joins another 
 |  
  
 
|  
13 
 |  
 
a group of genes that are under the control of the same regulatory mechanism 
 |  
  
 
|  
14 
 |  
 
when a section of chromosome breaks off, is reversed, and then joins back 
 |  
  
 
|  
16 
 |  
 
the preferred respiratory substrate for E.coli 
 |  
  
 
|  
 
 |  
  
  
 | 
 
 
 |  
 |  
  
 
|  
1 
 |  
 
enzymes that catalyse the addition of phosphate groups to proteins 
 |  
  
 
|  
2 
 |  
 
a change in the sequence of bases 
 |  
  
 
|  
3 
 |  
 
a chemical, physical or biological agent that causes a mutation 
 |  
  
 
|  
4 
 |  
 
a group of genes which all contain a homeobox 
 |  
  
 
|  
9 
 |  
 
the appearance of an organsism 
 |  
  
 
|  
10 
 |  
 
symmetry seen in animals like jellyfish 
 |  
  
 
|  
11 
 |  
 
mutation leading to the incorporation of an incorrect amino acid  
 |  
  
 
|  
15 
 |  
 
a mutation leading to an early stop codon 
 |  
  
 
|  
 
 |  
  
  
 |