What can be described as a thread-like structure of DNA, carrying genetic information in the form of genes.

(a)  

What is defined as a length of DNA that codes for a protein

(a)  

What is defined as a specific version of a gene?

(a)  

A nucleus containing a single set of unpaired chromosomes e.g. in gametes, would be described as what?

(a)  

A nucleus containing two sets of chromosomes e.g. in body cells, is known as what?

(a)  

The type of nuclear division giving rise to genetically identical cells e.g for growth and repair is called...

(a)  

Which type of cell division is a reduction division in which the chromosome number is halved from diploid to haploid resulting in genetically different cells e.g. when producing zygotes

(a)  

What is the genetic make-up of an organism in terms of the alleles present called?

(a)  

What do we call the observable features of an organism?

(a)  

If an individual has two identical alleles of a particular gene we say they are what?

(a)  

If an individual has two different alleles for a particular gene, we say they are what?

(a)  

An allele that is always expressed in the phenotype if it is present in the genotype is called the (a)   allele.

An allele that is only expressed when there is no dominant allele of the gene present is said to be what?

(a)  

Differences between individuals of the same species is called what?

(a)