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Test your basic knowledge |
CSET Genetics And Evolution
Start Test
Study First
Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can
study here
.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.
This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Group of similar organisms that can breed and produce fertile offspring
Histone
Bottle neck effect
Species
Geologic Evolution
2. Periods of rapid evolution punctuated by periods of little change
Absolute dating
Punctuated Equilibrium
restriction enzyme
Germ
3. The study of the structures of different organisms - looking at homologous parts
Double Helix
Comparative Anatomy
Common Ancestor
Comparative embryology
4. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Environment
Behavioral (ethological) Isolation
vestigial (Evolution Evidence)
Reproductive Isolation
5. Different alleles for a gene
Heterozygote
Population
Speciation
tRNA
6. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Genetic Drift
Geologic Evolution
Temporal Isolation
Cenozoic era
7. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Mitosis
Variation
Allele Frequency
Cast
8. The formation of new species as a result of evolution
body fossils
Medel worked with _____
Speciation
amino acid
9. A pairing where the parent plants differ in only one character.
analogous (Evolution Evidence)
gel electrophoresis
Monohybrid Cross
Mass Extinction
10. The backbone of DNA consist of...
tRNA
deoxyribose and phosphate
Insertion
3 nucleotides
11. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.
Sex Chromosomes
Translocation
Heterozygous
Guanine
12. Cross where you cross unknown genotype with a recessive
Chargaff
Ring Species
Gene Flow
Test Cross
13. Building block of a nucleic acid (DNA and RNA)
homologous (Evolution Evidence)
anticodon
nucleotide
Gene
14. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Founder Effect
anticodon
Incomplete Dominance
Absolute dating
15. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Balanced Polymorphism
Gene Pool
Fossils
Geographical Isolation
16. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
Reproductive Isolation
transcription
Genetic Drift
17. Building block of a protein
Temporal Isolation
geologic time scale
amino acid
Heterozygote
18. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
introns
Amber
Homologous structures
Analogous Structures (analogies)
19. The type of environment in which an organism or group normally lives or occurs
homologous (Evolution Evidence)
Absolute dating
Habitat
that is complementary to a single strand of DNA
20. Three mRNA nucleotides that code for a specific amino acid
Dominant
Genetic Equilibrium
Species
codon
21. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Histone
Adaptive Radiation
Codon
Gene flow
22. A change or error in the DNA sequence
polypeptide
Allele
Heterozygote
mutation
23. Another name for a gene
Heterozygous
Allele
Endemic
Nucleotide
24. Natural selection that causes the frequency of a particular allele to move in one direction
Sex Chromosomes
Hominid
Sequential Evolution
Directional Selection
25. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
If you lose one then you will still have one to back you up.
index fossil
Allopatric Speciation
Testcross
26. One of the identical rods of a chromosome.
analogous (Evolution Evidence)
Selection
Hybrid Breakdown
Chromatid
27. A combining of genes or characters different from what they were in the parents
Gene flow
Recombination
Gene mutation
Habitat
28. Form of reproductive isolation in which tere are differences in species courtship behavior
Phenotype
Behavioral (ethological) Isolation
Punctuated Equilibrium
Species
29. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Mechanical (morphological) Isolation
Allopatric Speciation
Phyletic Gradualism (anagenesis)
Homologous structures
30. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Mutation
Ring Species
Temporal Isolation
Hybrid
31. A unique combination of traits that are passed down from one generation to another.
molecular evidence
Bottleneck Effect
Homozygous
Heritable variation
32. The gradual changes in gene frequencies in a population due to random events
Reproductive Isolation
Genetic Drift
Polyploidy
index fossil
33. What is one benefit for having two strands of DNA?
mutation
Mold
If you lose one then you will still have one to back you up.
Mesozoic era
34. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Genotype
False RNA
Analogous Features
Convergent Evolution
35. Trait where heterozygous is a blending of two alleles
Sub - species
Genotype
Selection pressure
Directional Selection
36. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Balanced Polymorphism
Test Cross
Homologous Structures
Polyploidy
37. Closely related species occupying different habitats - niches preventing them from interbreeding
Mendel's Principle of Segregation
Ecological Barrier
mRNA
hydrogen bonds
38. Gradual evolution within a lineage
Adaptation
Habitat
Sequential Evolution
analogous (Evolution Evidence)
39. Movement of alleles into or out of a population due to the migration of individuals to or from the population
mRNA
Gene flow
embryological evidence
Ecological Barrier
40. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Double Helix
Punctuated Equilibrium
Genetic Equilibrium
Fossils
41. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.
Heterozygous
Relative dating
Homozygous
Sub - species
42. Actual remains of an organism such as bones - teeth - shells - etc.
body fossils
Isolating Mechanism
amino acids
Sedimentary Rock
43. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.
Mutation
Recessive
Convergent Evolution
transcription
44. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
Stabilising
Duplication
Heterozygote
45. A change in the base sequence of DNA; the ultimate source of new alleles
Monohybrid
Gene
Hominid
Mutation
46. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
deoxyribonucleic acid
Ice
transcription
nucleotides
47. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Natural Selection
Mendel's Principle of Segregation
genes
RNA polymerase
48. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
DNA fingerprint
tRNA
Directional Selection
Alleles
49. The specific location of a gene on a chromosome
Mold
Hybrid Breakdown
Locus
Coevolution
50. What does DNA stand for...
deoxyribonucleic acid
Genetic Drift
Punnett Square
Petrification