Genetic Variation And Its Control Flashcards
1
Q
Cuttings process
Ad and disadvantage
A
Cut leaf and stem off dip it in hormone and place in soil Advantage Cheap Get also good fruit from same gene Easy Don't need seed Cons No variation and susceptible to disease Slow process
2
Q
Tissue cell cloning process
Pros and cons
A
Get cells off leaf and place in Petri dish containing lot of nutrients Pros 100s produced All reproduce desired No seed Plants mature quick Whole plants produced by few cell Cons Expensive No variety Doesn't work for all plants Need specialised people
3
Q
Cow embryo cloning process
Pros and cons
A
Split embryo cells not specialised giving it the potential to turn into w new organism therefore get 3 new organism rathe than 1. Produce by gamets Pros Top quality live stock Desired trait repeated Females can produce 8-10 calves a year Can produce copies of GM embryos Cons Technique is skilled Expensive Gamets needed Only cloned zygot not mother Not identical to mother or father Produced sexually
4
Q
Adult cell cloning process
Pros and cons
A
Removed nucleus from egg Take skin cell and egg nucleus from female sheep fused together and divides and develops into embryo which is placed it I surrogate mother uterus Pros Cows GE to produce proteins in milk Save animals from extinction Bring back extinct animals Cloned prize animals continue after death Help infertile couples Cons Could be abused Reduce variety less able to survive Human rights Second class citizens Press isn't perfect eg deformed
