variation

Question 1

define variation

Answer 1

differences between living organisms

Question 2

what is genotype variation caused by

Answer 2

genetic material inherited from parents

Question 3

what is phenotype variation caused by

Answer 3

environmental factors

Question 4

define mutation

Answer 4

change in the base sequence of DNA

Question 5

define evolution

Answer 5

graudual change in organisms over time

Question 6

define natural selection

Answer 6

the survival of organism suited to their environment (drives evolution0

Question 7

define elective breeding

Answer 7

choosing parents with desired characteristics and breeding them together

Question 8

give the disadvantages of selective breeding

Answer 8

reduced variation, increased risk of extinction

Question 9

define genetic engineering

Answer 9

inserting desired gneiss into an organism DNA

Question 10

what do scientists use ti insert gens into the DNA of another organism

Answer 10

bacterial plasmids

Question 11

give the advances of genetic engineering

Answer 11

increased food production
increased animal and plant growth
increased crop value
crops can be grown in any condition

Question 12

give the disadvantages of genetic engineering

Answer 12

unknown side effects genetically modified organisms can affect other wildlife