Natural selection/Genetic modification

Question 1

what is evolution

Answer 1

a gradual change within a population over time
occurs due to natural selection

Question 2

evolution of humans

Answer 2

Ardi
Lucy
Homo Habilis
Homo Erectus
Homo Sapiens

Question 3

name the five kingdoms

Answer 3

Animals
plants
fungi
protists
prokaryotes

Question 4

what are the three groups organisms are initially divided into?

Answer 4

Archaea
Bacteria
Eukarya

Question 5

what is selective breeding

Answer 5

selecting organisms with desirable characteristics and breeding them

Question 6

disadvantages of selective breeding

Answer 6

reduction in gene pool
inbreeding results in genetic disorders
development of other physical problems

Question 7

what is genetic engineering

Answer 7

modification of the genome of an organism by inserting a desired gene from another organism

Question 8

describe the process of genetic engineering

Answer 8

1) DNA is cut by restriction enzymes to create sticky ends.
2) Vector DNA cut using same enzymes to create complementary sticky ends
3) Ligase enzymes join sticky ends of DNA and vector DNA forming recombinant DNA
4) Recombinant DNA mixed with target cells

Question 9

what is a vector

Answer 9

a structure that delivers the desired gene into the recipient cell

Question 10

What is biological control

Answer 10

when a new organism (often a predator) is introduced into an ecosystem to control a pest or pathogen