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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. Selection for the ability to obtain a mate
Hybrid Inviability
Sexual Selection
Divergent Evolution
Adaptation
2. Pea plants
Sympatric Speciation
Medel worked with _____
Geographical Isolation
Analogous Features
3. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Genetic Drift
Microevolution
Substitution
embryological evidence
4. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Homozygote
Precambrian era
Natural Selection
nucleotides
5. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
Immigration
Chromosome mutation
Homologous Structures
Phenotype
6. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Habitat
NIche Isolation
Immigration
Macroevolution
7. 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
Paleozoic era
Insertion
Analogous Structures (analogies)
Mechanical (morphological) Isolation
8. Organ no longer serves a function
vestigial (Evolution Evidence)
Comparative Anatomy
Balanced Polymorphism
Sexual Selection
9. Inherited feature that tends to prevent species from interbreeding with other species
Histone
Crossing over
Isolating Mechanism
Behavioral (ethological) Isolation
10. A DNA double helix is held together in the center by between nitrogenous bases
hydrogen bonds
Independent assortment
Clade
Evolution
11. Group of individuals of the same species that live in the same area
Population
hydrogen bonds
Vestigial organs
rRNA
12. Is the evolutionary process whereby a population becomes better suited to its habitat
Allopatric Speciation
Adaptation
Translocation
Punctuated Equilibrium
13. A mutation in which one nucleotide is replaced by another nucleotide
Substitution
introns
transcription
Comparative Anatomy
14. Movement of alleles into or out of a population due to the migration of individuals to or from the population
Divergent Evolution
Centromere
Directional Selection
Gene flow
15. Form of reproductive isolation in which two populations reproduce at different times
Temporal Isolation
Adaptation
Alleles
geologic time scale
16. Are noncoding sequences in the gene that are removed from RNA after transcription
Homologous Structures
Chromosome mutation
Gene Flow
introns
17. Speciation which does not involve a period of geographical separation
Niche
Sympatric Speciation
Allele
rRNA
18. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Paleozoic era
Balanced Polymorphism
Recessive
Dihybrid Cross
19. What happens during the process of translation
Adaptation
restriction enzyme
Somatic
The cell uses information from mRNA to produce proteins
20. Nucleotides that control which amino acids are added during protein synthesis
Autosomes
Codon
Cytosine
Comparative anatomy
21. 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.
Guanine
Igneous and metamorphic rock
Rosalind Franklin
Bottleneck Effect
22. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
rRNA
Testcross
Chromosomes
Heterozygous
23. A change in the base sequence of a gene
Codon
Hybrid
Comparative anatomy
Gene mutation
24. Selection acting against the middle of a range of variation
transcription
Parallel Evolution
Disruptive Selection
Comparative embryology
25. 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.
Vestigial structure
Igneous and metamorphic rock
Biogeography
Homologous pair
26. Another term for pure breeding
Relative dating
Homologous pair
Petrification
Homozygous
27. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Post -zygotic Mechanisms
transcription
Amber
its negative charge
28. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Selection pressure
Stabilising
Analogous Structures (analogies)
Genetic Equilibrium
29. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.
Homozygous
Semi - conservative replication
homologous (Evolution Evidence)
Balanced Polymorphism
30. Building block of a nucleic acid (DNA and RNA)
nucleotide
Clade
RNA polymerase
anticodon
31. The backbone of DNA consist of...
deoxyribose and phosphate
Character Displacement
Duplication
Genotype
32. Another name for a gene
mRNA
Comparative embryology
Adenine
Allele
33. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Recessive
Stabilising selection
Hershey and Chase
Sexual Selection
34. Copying the code from DNA onto mRNA
transcription
Analogous Structures (analogies)
Phyletic Gradualism (anagenesis)
Analogous structures
35. The type of environment in which an organism or group normally lives or occurs
Comparative embryology
Dihybrid
Independent assortment
Habitat
36. What does DNA stand for...
Dihybrid Cross
restriction enzymes - sticky ends
homologous (Evolution Evidence)
deoxyribonucleic acid
37. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Germ
Homozygous
Parallel Evolution
Gametic
38. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Homozygote
Phenotype
Igneous and metamorphic rock
Gene flow
39. A geographic gradient in the extent to which a character is developed in a species
clinC
Mutation
Mutagen
Substitution
40. 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
Gene pool
Paleozoic era
Fossil
Heterozygous
41. One of the identical rods of a chromosome.
thymine
Sex Chromosomes
Adaptation
Chromatid
42. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
stop codon
Gene
that is complementary to a single strand of DNA
Mutation
43. Gene
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44. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Niche
Phyletic Gradualism (anagenesis)
Recessive
Ecological (habitat) Isolation
45. 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.
Deme
Meiosis
Mendel's traits are now called _____ found on DNA
Heterozygous
46. The region of the chromosome that holds the two sister chromatids together during mitosis
Centromere
RNA polymerase
Species
deoxyribonucleic acid
47. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
replication
If you lose one then you will still have one to back you up.
Sympatric Speciation
Hybrid
48. When a few individuals become isolated from a larger population - this smaller group may establish a new population whose gene pool is different from their source population.
Substitution
Mutagen
Ecological Barrier
Founder effect
49. Human - like species that existed millions of years ago as witnessed through fossil evidence.
Hominid
Fossil
Mutation
Relative dating
50. Dna moves during electrophoresis because of...
geologic time scale
Comparative anatomy
its negative charge
analogous (Evolution Evidence)