Genes and Mutations
A mutation is:
A. a change in behavior
B. a new organ forming
C. a loss of all genetic material
D. a change in DNA sequence
D. a change in DNA sequence
BOMB
Biotechnology is:
A. rock collecting
B. using living systems to develop products
B. building machines
C. weather forecasting
B. using living systems to develop products
STEAL
Fossils are:
A. living organisms
B. man-made objects
C. preserved remains of past life
D. modern tools
C. preserved remains of past life
STEAL
Fossils of whales with leg bones suggest:
A. whales were always fish
B. whales came from birds
C. whales never changed
D. whales evolved from land mammals
D. whales evolved from land mammals
SWAP
Natural selection explains how:
A. atoms move
B. species adapt over time
C. stars shine
D. rocks form
B. species adapt over time
BOMB
Mutations are important for evolution because they:
A. provide variation
B. always harm organisms
C. eliminate diversity
D. never get passed on
A. provide variation
POISON
Cloning produces:
A. completely new species
B. fossil copies
C. chemical reactions
D. genetically identical organisms
D. genetically identical organisms
A. sedimentary
B. igneous
C. metamorphic
D. volcanic glass
A. sedimentary
Comparative anatomy studies:
A. body structure similarities and differences
B. weather
C. chemistry
D. stars
A. body structure similarities and differences
SWAP
Survival of the fittest means:
A. best adapted organisms survive and reproduce
B. strongest always win
C. biggest always live
D. fastest always survive
A. best adapted organisms survive and reproduce
BOMB
Which of these can cause mutations?
A. UV radiation
B. exercise
C. breathing
D. drinking water
A. UV radiation
POISON
Which is a GMO (genetically modified organism)?
A. corn with pest resistance
B. a wild tree
C. a fossilized plant
D. a rock
A. corn with pest resistance
Transitional fossils show:
A. no changes
B. instant evolution
C. chemical reactions
D. intermediate traits
D. intermediate traits
BOMB
Wings of bats and humans are:
A. homologous structures
B. vestigial structures
C. analogous structures
D. fossils
A. homologous structures
If species cannot adapt to changes, they:
A. may go extinct
B. become stronger immediately
C. never reproduce
D. always survive
A. may go extinct
POISON
Which is the example of a beneficial mutation?
A. sunburn
B. cancer
C. bacteria resistant to antibiotics
D. chromosome deletion
C. bacteria resistant to antibiotics
Which is an advantage of biotechnology?
A. eliminating all biodiversity
B. increased crop yields
C. increasing pollution
D. reducing food supplies
B. increasing crop yields
STEAL
The oldest layers are found:
A. in the deepest layers
B. on the surface
C. in youngest rocks
D. in magma
A. in the deepest layers
What is a vestigial structure in humans?
A. brain
B. heart
C. eyes
D. appendix
D. appendix
STEAL
Genetic diversity in populations:
A. eliminates variation
B. increases survival chances
C. prevent changes
D. reduces adaptation
B. increases survival changes
STEAL
Mutations that can help organisms are more likely to:
A. cause extinction
B. be passed on to offspring
C. never appear in offspring
D. be eliminated immediately
B. be passed on to offspring
BOMB
Gene therapy attempts to:
A. cause mutations
B. remove fossils
C. correct faulty genes
D. change ecosystems
C. correct faulty genes
SWAP
The fossil record is incomplete because:
A. fossils never decay
B. not all organisms fossilize
C. fossils form instantly
D. all organisms fossilize perfectly
B. not all organisms fossilize
SWAP
Embryos of vertebrates show:
A. similar early development
B. no similarities
C. different DNA only
D. fossils
A. similar early development
STEAL
Variation in populations comes from:
A. identical DNA
B. no changes
C. fossils
D. mutations and genetic differences
D. mutations and genetic differences
BOMB