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CSET Genetics And Evolution
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Subjects
:
cset
,
science
,
genetics
Instructions:
Answer 50 questions in 15 minutes.
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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. Is found in DNA
thymine
Genetic Equilibrium
Germ
Test Cross
2. 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.
body fossils
Mutation
proteins
Relative dating
3. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
Double Helix
anticodon
Gene
Hybrid
4. A trait that masks the expression of another trait
Chiasma
Petrification
vestigial (Evolution Evidence)
Dominant
5. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
Relative dating
Petrification
Variation
Ecological (habitat) Isolation
6. Organ no longer serves a function
vestigial (Evolution Evidence)
Evo Devo
Adaptation
Mesozoic era
7. The number of times an allele appears in a population
Allele Frequency
Gene pool
Natural Selection
Stabilising selection
8. Transcrition occurs in the...
Niche
3 nucleotides
nucleus
rRNA
9. What does DNA stand for...
Chargaff
deoxyribonucleic acid
Coevolution
nucleotide
10. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry
The cell uses information from mRNA to produce proteins
Analogous Structures (analogies)
Mutagen
Phylogeny
11. Nucleotides that control which amino acids are added during protein synthesis
Divergent Evolution
Codon
Dominant
Population
12. Ribosomal RNA; type of RNA that makes up part of the ribosome
Fossil
If you lose one then you will still have one to back you up.
rRNA
Monohybrid
13. A unique combination of traits that are passed down from one generation to another.
watson and crick
rRNA
Niche
Heritable variation
14. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Allopatric Speciation
embryological evidence
Species
Recessive
15. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Cytosine
tRNA
Coevolution
Alleles
16. The evolutionary process by which a species becomes better suited to its niche.
Chromatid
Behavioral (ethological) Isolation
Adaptation
Ecological (habitat) Isolation
17. Mating of 2 oism that differ in 2 characters
Gene
Genotype
Dihybrid Cross
Phenotype
18. Found only in that country
Codon
Petrification
geologic time scale
Endemic
19. A codon is made of...
Gametic
Stabilising selection
3 nucleotides
Microevolution
20. The gradual changes in gene frequencies in a population due to random events
mRNA
Incomplete Dominance
Genetic Drift
Phenotype
21. Another name for a gene
Sex Chromosomes
Allele
Allele Frequency
Codon
22. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Amber
mRNA
Variation
stop codon
23. Group of individuals of the same species that live in the same area
Heterozygous
Population
The cell uses information from mRNA to produce proteins
restriction enzymes - sticky ends
24. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups
that is complementary to a single strand of DNA
Species
Allele
Genetic Equilibrium
25. The backbone of DNA consist of...
Macroevolution
deoxyribose and phosphate
Pentadactyl limb
Isolating Mechanism
26. The environmental factors that favour certain phenotypes
Molecular biology
Comparative Embryology
Coevolution
Selection pressure
27. Organ that serves no useful function in an organism
chromatin
Vestigial organs
rRNA
Mutation
28. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Phyletic Gradualism (anagenesis)
Pentadactyl limb
Dihybrid
Homozygote
29. Geologic period that followed the Precambrian;means 'ancient life' - early life (570-286 million years ago); single cell organisms - shells - mollusks - rise of first vertebrates - rise of land plants - amphibians - insects - seed plants - and trees
Population
Paleozoic era
cytoplasm
analogous (Evolution Evidence)
30. Disappearance of a species from all parts of its geographical range
Biogeography
Extinction
Pentadactyl limb
Coevolution
31. How often a particular gene occurs in the population
Recessive
Hybrid Inviability
Dihybrid Cross
Gene frequency
32. Trait evolves overtime; NO common ancestry
Disruptive Selection
genes
Thymine
analogous (Evolution Evidence)
33. The banding pattern of a persons DNA after being cut and run on gel is called
Mutation
Environment
Allele Frequency
DNA fingerprint
34. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Diploid
Independent assortment
Species
introns
35. Method of replication that implies that each new strand of DNA is half original and half new
Comparative Anatomy
Semi - conservative replication
Homologous pair
Codon
36. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Stasis
Cytosine
Autosomes
RNA polymerase
37. A DNA double helix is held together in the center by between nitrogenous bases
Punctuated Equilibrium
Pre -zygotic Mechanisms
Ecological (habitat) Isolation
hydrogen bonds
38. T or F If a nucleic acid contain uracil it is DNA
Temporal Isolation
mRNA
Selection pressure
False RNA
39. 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.
Mitosis
body fossils
RNA polymerase
Heterozygote
40. The adaptive increase in pigmentation as a result of human - induced pollutants
Biogeography
mRNA
Hershey and Chase
Industrial Melanism
41. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Cenozoic era
Genetic Drift
Nucleotide
Testcross
42. Are noncoding sequences in the gene that are removed from RNA after transcription
Fitness
Gene frequency
introns
Analogous Structures (analogies)
43. Mutation where an extra base is added
Insertion
Genotype
Locus
proteins
44. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Comparative embryology
Clade
Chargaff
watson and crick
45. These prevent fertilization between species e.g. diff breeding season - mating behaviour
Diploid
translation
Mutagen
Pre -zygotic Mechanisms
46. When competition causes two closely related species to become more different in regions where their ranges overlap
Adaptation
Codon
Character Displacement
Allele Frequency
47. The study relating the evolution of new charateristics to changes in the genes controlling development
analogous (Evolution Evidence)
Hybrid Infertility
Evo Devo
mutation
48. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Industrial Melanism
translation
Adaptive Radiation
Gene flow
49. Even if the gametes of the two species meet - fertilization does not occur
stop codon
Hominid
Gamete Isolation
Germ
50. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
Adaptation
Homozygous
tRNA
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