RGC Higher Biology: Plant and Animal Breeding

Outbreeding is mating with a

A new breed of F1 hybrids can be maintained by

F1 hybrids are not mated together because their offspring will be

Self-pollinating plants are less susceptible to inbreeding depression because 

Inbreeding involves mating with

Deleterious alleles decrease an individual's chances of 

A purpose of selective breeding of a population is to increase the frequency of

This is not a desirable feature of crop plants

The offspring of different breeds are called

Genetic transformation of a crop plant would not involve the modification of its

Cross breeding in food production is the mating of

In plant field trials, controls are needed to

F1 hybrid animals usually have the

In plant field trials, the order of treatments in each replicate is randomised in order to

Inbreeding depression is the reduced fitness caused by

Test crosses are used to identify individuals who are