SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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. Determined the complete double helical structure of DNA
Hybrid
Chiasma
Testcross
watson and crick
2. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Character Displacement
Phenotype
transcription
Homozygous
3. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
Diploid
Autosomes
Species
4. Change to a chromosome in which part of the chromosome is repeated
Stabilising
its negative charge
Species
Duplication
5. The preserved remains or traces of an organism that lived in the past
Fossil
deoxyribonucleic acid
Gene pool
Mendel's Principle of Segregation
6. Change to a chromosome in which a fragment of the chromosome is removed
Deletion
amino acid
Endemic
mRNA
7. A combining of genes or characters different from what they were in the parents
Translocation
Recombination
Adaptation
Biogeography
8. A genetic crosses that involve one trait. e.g TT plant crossed with tt plant has offspring who are heterozygous Tt.
DNA
Monohybrid
Analogous Structures (analogies)
Stasis
9. When chromosome is changed by radiation and chemicals - results a permanent structural change in the chromosome - which will no longer be able to pair with its homologous pair. Eg - deletion - duplication - inversion and translocation.
Genetic Drift
Adenine
Chromosome mutation
Isolating Mechanism
10. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.
Directional Selection
Variation
Analogous Structures (analogies)
Test Cross
11. 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
Character Displacement
index fossil
Homozygote
Organic Evolution
12. An evolutionary 'branch' and its daughter 'twigs'
ribose - phosphate - and a base
Gene mutation
Species
Clade
13. A unique combination of traits that are passed down from one generation to another.
Biogeography
Heritable variation
Petrification
Species
14. Innate trait; shared ancestry
Gene flow
Absolute dating
homologous (Evolution Evidence)
that is complementary to a single strand of DNA
15. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Biogeography
Adaptive Radiation
DNA
Cenozoic era
16. T or F a codon consist of three nucleotides
Phyletic Gradualism (anagenesis)
Genetic Drift
Comparative anatomy
true
17. Cell division in which the nucleus divides into nuclei containing the same number of chromosomes. Mitosis involves growth and repair and occurs in the body cells.
Sex Chromosomes
codon
Mitosis
Monophyletic
18. The type of environment in which an organism or group normally lives or occurs
Heterozygous
Bottle neck effect
tRNA
Habitat
19. Form of reproductive isolation in which tere are differences in species courtship behavior
Chromosomes
Behavioral (ethological) Isolation
False genes
NIche Isolation
20. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
trace fossils
Mutation
Genotype
Ring Species
21. Is active during transcription
Phyletic Gradualism (anagenesis)
translation
Gene pool
RNA polymerase
22. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Parallel Evolution
Genotype
geologic time scale
Comparative embryology
23. Movement of organisms ro of from a population
Migration
Directional Selection
Relative dating
Chromosome mutation
24. Speciation which does not involve a period of geographical separation
Sympatric Speciation
deoxyribose and phosphate
Cenozoic era
Hybrid Inviability
25. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Behavioral (ethological) Isolation
Hershey and Chase
Translocation
Centromere
26. DNA is made of...
Codon
nucleotides
Test Cross
Ice
27. A change in the base sequence of a gene
Hybrid Inviability
Gene frequency
Gene mutation
Analogous Structures (analogies)
28. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.
Homologous pair
rRNA
Semi - conservative replication
Diploid
29. A group of organisms of the same species occupying a given area.
Phenotype
Vestigial organs
Macroevolution
Population
30. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
trace fossils
Amber
Bottle neck effect
Crossing over
31. Embryos of similar organisms have very similar early development indicating similar DNA at work
replication
Comparative anatomy
Comparative Embryology
Comparative Anatomy
32. The enzyme that binds to the promoter region of a gene during transcription is called...
Genetic Equilibrium
index fossil
amino acid
RNA polymerase
33. Is found in DNA
thymine
transcription
restriction enzyme
stop codon
34. How many codons are needed to specify three amino acids
Parallel Evolution
Molecular biology
Gene frequency
three
35. The final product of transcription is...
Balanced Polymorphism
Gamete Isolation
mRNA
Fossils
36. Closely related species occupying different habitats - niches preventing them from interbreeding
Environment
Double Helix
Ecological Barrier
rRNA
37. During transcription an RNA molecule is formed
Coevolution
that is complementary to a single strand of DNA
thymine
Genetic Equilibrium
38. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.
Speciation
Igneous and metamorphic rock
Population
Reproductive Isolation
39. The movement of individuals into an area
Immigration
Reproductive Isolation
Medel worked with _____
Vestigial structure
40. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Convergent Evolution
Divergent Evolution
proteins
replication
41. Which structure contains anticodons
tRNA
Semi - conservative replication
Testcross
Analogous structures
42. How often a particular gene occurs in the population
Gene frequency
Mutagen
Test Cross
Somatic
43. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Comparative anatomy
Founder effect
Hominid
Reproductive Isolation
44. A distinct population of a species that varies from other populations of the same species.
ribose - phosphate - and a base
Vestigial structure
Sub - species
Precambrian era
45. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Sexual Selection
Organic Evolution
Relative dating
Hybrid
46. Gradual evolution within a lineage
Punctuated Equilibrium
Hybrid
Ice
Sequential Evolution
47. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
transcription
stop codon
thymine
Selection
48. Separates DNA by size
gel electrophoresis
Gene mutation
Monohybrid
Chargaff
49. Selection acting against the middle of a range of variation
Analogous structures
Histone
Relative dating
Disruptive Selection
50. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
translation
Chromosomes
Convergent Evolution
Balanced Polymorphism