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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. 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.
Dominant
Absolute dating
Mitosis
Organic Evolution
2. T or F a codon consist of three nucleotides
watson and crick
true
Geologic Evolution
Double Helix
3. Structure present in an organism however does NOT have a known function. May link organisms with similar vestigial structures. Example: appendix - coccyx bone - whale leg bones.
Igneous and metamorphic rock
Chiasma
Vestigial structure
Behavioral (ethological) Isolation
4. 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.
DNA fingerprint
Sequential Evolution
deoxyribonucleic acid
Relative dating
5. The formation of new species as a result of evolution
Stabilising selection
Heritable variation
Founder effect
Speciation
6. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Translocation
Phenotype
3 nucleotides
Mate Selection
7. Is found in DNA
Behavioral (ethological) Isolation
DNA
trace fossils
thymine
8. Trait evolves overtime; NO common ancestry
Variation
Ice
analogous (Evolution Evidence)
Genetic Drift
9. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Comparative embryology
Post -zygotic Mechanisms
Adaptive Radiation
Evolution
10. The movement of genes between populations as a result of mating of migration
Sedimentary Rock
Directional Selection
Gene Flow
translation
11. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Cytosine
Speciation
Cenozoic era
Chiasma
12. A trait that masks the expression of another trait
Character Displacement
Comparative Anatomy
Heritable variation
Dominant
13. Impression made from a organism in soft material such as sand or mud.
Parallel Evolution
Founder effect
amino acids
Mold
14. Used x ray cyrstallography to create an image of DNA
Rosalind Franklin
Sex Chromosomes
Monohybrid Cross
Fossils
15. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
Mesozoic era
Test Cross
Gene Pool
Somatic
16. Which structure contains anticodons
Heterozygote
tRNA
Gamete Isolation
nucleotides
17. A DNA double helix is held together in the center by between nitrogenous bases
Founder effect
proteins
Homologous structures
hydrogen bonds
18. DNA that is coiled around proteins
Hybrid Inviability
clinC
chromatin
If you lose one then you will still have one to back you up.
19. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
Cenozoic era
Mitosis
Gene mutation
stop codon
20. What is one benefit for having two strands of DNA?
If you lose one then you will still have one to back you up.
Extinction
Genetic Drift
Duplication
21. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Test Cross
mRNA
Stabilising
Geographical Isolation
22. Three mRNA nucleotides that code for a specific amino acid
Hybrid Infertility
Natural Selection
codon
Population
23. Identical alleles for a gene
Homozygote
Gene frequency
Double Helix
translation
24. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Genetic Equilibrium
Crossing over
Incomplete Dominance
its negative charge
25. How often a form of a gene appears in a gene pool
its negative charge
Allele Frequency
Chromatid
Medel worked with _____
26. The type of environment in which an organism or group normally lives or occurs
Hybrid Breakdown
Habitat
Pre -zygotic Mechanisms
transcription
27. When competition causes two closely related species to become more different in regions where their ranges overlap
Locus
Character Displacement
mutation
Biogeography
28. Nucleotides that control which amino acids are added during protein synthesis
Species
Codon
Founder effect
3 nucleotides
29. Features that are superficially similar but have different modes of development
its negative charge
Absolute dating
Pentadactyl limb
Analogous Features
30. Periods of rapid evolution punctuated by periods of little change
true
Punctuated Equilibrium
GATTACA
Precambrian era
31. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Guanine
Sexual Selection
Phylogeny
Gene Pool
32. Different alleles for a gene
watson and crick
Heterozygote
Gene mutation
Genetic Drift
33. 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.
Genetic Drift
Natural Selection
Mitosis
Recessive
34. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti
Extinction
Meiosis
Ice
Medel worked with _____
35. An ancestor that two or more descendants have in common
Guanine
Industrial Melanism
Common Ancestor
Medel worked with _____
36. 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
Analogous Structures (analogies)
nucleus
Sedimentary Rock
Vestigial organs
37. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Molecular biology
Genetic Equilibrium
Homozygous
Environment
38. The banding pattern of a persons DNA after being cut and run on gel is called
Divergent Evolution
Coevolution
Environment
DNA fingerprint
39. Name for oism with one dominant and one recessive allele
Analogous structures
Heterozygous
Chromosomes
Geologic Evolution
40. What happens during the process of translation
Analogous Features
The cell uses information from mRNA to produce proteins
Evolution
RNA polymerase
41. Speciation preceded by a period of geographical isolation
Adaptive Radiation
Phenotype
Allopatric Speciation
Biogeography
42. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Mold
gel electrophoresis
Selection pressure
NIche Isolation
43. Transcrition occurs in the...
Codon
Heterozygous
nucleus
Crossing over
44. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Monophyletic
mRNA
embryological evidence
Adenine
45. Speciation which does not involve a period of geographical separation
true
Hominid
Sympatric Speciation
transcription
46. Another term for pure breeding
Homozygous
Coevolution
Genome
Convergent Evolution
47. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Biogeography
Clade
mRNA
Population
48. Is active during transcription
Post -zygotic Mechanisms
Comparative Embryology
RNA polymerase
Pentadactyl limb
49. Form of reproductive isolation in which tere are differences in species courtship behavior
nucleus
Genetic Drift
Behavioral (ethological) Isolation
its negative charge
50. 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.
trace fossils
Chromosome mutation
Hershey and Chase
Deme