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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. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance
Natural Selection
Stasis
Allopatric Speciation
Clade
2. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
embryological evidence
Analogous structures
Stabilising selection
Centromere
3. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Ice
Post -zygotic Mechanisms
Cytosine
Precambrian era
4. Proteins are made of...
replication
translation
amino acids
Microevolution
5. Form of reproductive isolation in which two populations reproduce at different times
Allele Frequency
molecular evidence
Temporal Isolation
Natural Selection
6. Chromosomes are collections of many
Genetic Equilibrium
Chiasma
genes
Hybrid Inviability
7. Change in a DNA sequence that affects genetic information
Sexual Selection
Mutation
molecular evidence
true
8. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Genotype
Translocation
chromatin
Chiasma
9. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Variation
NIche Isolation
Environment
Monohybrid Cross
10. A base found in DNA (but not in RNA). This base pairs with Adenine.
Thymine
Organic Evolution
Monohybrid
Dihybrid
11. A limb with five digits (fingers)
Pentadactyl limb
False RNA
Endemic
Crossing over
12. A distinct population of a species that varies from other populations of the same species.
gel electrophoresis
Histone
Sub - species
Speciation
13. Method of replication that implies that each new strand of DNA is half original and half new
Variation
Mechanical (morphological) Isolation
Isolating Mechanism
Semi - conservative replication
14. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Comparative embryology
Chromatid
Medel worked with _____
Natural Selection
15. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
NIche Isolation
Chromosomes
Chiasma
16. Determined the concept of complementary base pairing
Chargaff
Dominant
NIche Isolation
Hybrid
17. An evolutionary 'branch' and its daughter 'twigs'
body fossils
Clade
nucleotide
vestigial (Evolution Evidence)
18. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Chargaff
hydrogen bonds
anticodon
Gene Pool
19. 2 alleles for a character separate during the formation of gametes - so that each gamete only carriers one allele for each character
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20. What does DNA stand for...
deoxyribonucleic acid
Founder Effect
proteins
ribose - phosphate - and a base
21. Is the evolutionary process whereby a population becomes better suited to its habitat
Stasis
Adaptation
Disruptive Selection
Hybrid
22. Nucleotides that control which amino acids are added during protein synthesis
Dominant
Dihybrid Cross
Nucleotide
Codon
23. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Petrification
vestigial (Evolution Evidence)
Speciation
Recombination
24. Found only in that country
Histone
Endemic
Analogous structures
Chromosome mutation
25. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Adaptive Radiation
Dominant
analogous (Evolution Evidence)
Vestigial structure
26. Actual remains of an organism such as bones - teeth - shells - etc.
Phyletic Gradualism (anagenesis)
Divergent Evolution
body fossils
Ring Species
27. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Diploid
homologous (Evolution Evidence)
Test Cross
Ring Species
28. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Independent assortment
Vestigial organs
Analogous structures
Chromosome mutation
29. The evolutionary process by which a species becomes better suited to its niche.
Adaptation
Gamete Isolation
Isolating Mechanism
molecular evidence
30. The adaptive increase in pigmentation as a result of human - induced pollutants
Test Cross
Paleozoic era
Industrial Melanism
Mass Extinction
31. When competition causes two closely related species to become more different in regions where their ranges overlap
Character Displacement
Mendel's Principle of Segregation
Somatic
Analogous Features
32. The gradual changes in gene frequencies in a population due to random events
restriction enzymes - sticky ends
Genotype
Gametic
Genetic Drift
33. A geographic gradient in the extent to which a character is developed in a species
Industrial Melanism
Comparative Embryology
clinC
Evo Devo
34. The environmental factors that favour certain phenotypes
Comparative embryology
Dihybrid
Selection pressure
Ecological Barrier
35. Three mRNA nucleotides that code for a specific amino acid
Comparative anatomy
codon
Mechanical (morphological) Isolation
Adaptation
36. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
trace fossils
Sequential Evolution
Geographical Isolation
Coevolution
37. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Chromosomes
clinC
thymine
Stabilising
38. DNA is made of...
Population
stop codon
proteins
nucleotides
39. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
hydrogen bonds
Cytosine
Analogous Features
40. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.
Gametic
Gene mutation
Meiosis
trace fossils
41. Periods of rapid evolution punctuated by periods of little change
Mesozoic era
Adaptive Radiation
Deletion
Punctuated Equilibrium
42. Process by which a ribosome uses the code on mRNA to make proteins
Allele Frequency
Hybrid
translation
Post -zygotic Mechanisms
43. Uses metamorphic or igneous rock - calculates the age of an object by assessing the amount of radioactive element still present in the organism. Radioactive elements are slowly lost over time because of decay.
Migration
Extinction
Variation
Absolute dating
44. The independant evolution of similar traits - starting from a similar ancestral condition
Adaptive Radiation
Natural Selection
Dominant
Parallel Evolution
45. A change in the base sequence of a gene
Chromosome mutation
Homologous Structures
Diploid
Gene mutation
46. T or F If a nucleic acid contain uracil it is DNA
mRNA
Mate Selection
False RNA
Chargaff
47. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
Haploid/Monoploid
polypeptide
Homologous Structures
Mold
48. DNA that is coiled around proteins
chromatin
Genome
proteins
Allele
49. A combining of genes or characters different from what they were in the parents
clinC
Independent assortment
Recombination
Dominant
50. 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.
Relative dating
Geographical Isolation
true
Double Helix