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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. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Genetic Equilibrium
Ice
Fossils
Chiasma
2. Gene
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3. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
Natural Selection
hydrogen bonds
RNA polymerase
Diploid
4. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
mutation
Semi - conservative replication
Bottle neck effect
NIche Isolation
5. Different alleles for a gene
its negative charge
true
Selection pressure
Heterozygote
6. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Precambrian era
Bottle neck effect
analogous (Evolution Evidence)
Homozygous
7. Method of replication that implies that each new strand of DNA is half original and half new
Adaptive Radiation
Gene Flow
Semi - conservative replication
Selection pressure
8. An ancestor that two or more descendants have in common
Common Ancestor
Geographical Isolation
Test Cross
Mesozoic era
9. 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
Genetic Equilibrium
Meiosis
Cenozoic era
Natural Selection
10. How often a form of a gene appears in a gene pool
transcription
Allele Frequency
Test Cross
Gene Flow
11. 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
Gene Flow
Hybrid Infertility
Relative dating
12. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
proteins
Stabilising selection
amino acid
Convergent Evolution
13. When zygote does not complete development or is physically weaker than normal
Mate Selection
Sub - species
Gene mutation
Hybrid Inviability
14. Three mRNA nucleotides that code for a specific amino acid
codon
NIche Isolation
Mechanical (morphological) Isolation
Homologous pair
15. 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
Population
Pre -zygotic Mechanisms
Natural Selection
Meiosis
16. The comparison of the structures of different organisms
Comparative anatomy
Environment
Genotype
Sub - species
17. Group of individuals of the same species that live in the same area
Histone
Reproductive Isolation
Population
thymine
18. A change in the base sequence of a gene
Gene mutation
Homologous structures
Pentadactyl limb
Adenine
19. Impression made from a organism in soft material such as sand or mud.
Mold
cytosine in DNA is about equal to the percentage of guanine molecules
Temporal Isolation
Natural Selection
20. 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.
mRNA
Genetic Equilibrium
Gametic
Fossils
21. 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.
mutation
amino acids
Chromosome mutation
cytoplasm
22. How many codons are needed to specify three amino acids
If you lose one then you will still have one to back you up.
transcription
three
Hominid
23. Change in a DNA sequence that affects genetic information
Mutation
Genetic Equilibrium
Deletion
Speciation
24. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Chromosome mutation
Selection
Post -zygotic Mechanisms
Monohybrid Cross
25. The individuals choice of which mate they will choose. The choice is dependant on what traits the individual finds attractive. e.g some people will want their mates to be smart or pretty.
Mate Selection
trace fossils
Adaptive Radiation
analogous (Evolution Evidence)
26. Periods of rapid evolution punctuated by periods of little change
Genetic Equilibrium
Punctuated Equilibrium
Chiasma
Nucleotide
27. A combining of genes or characters different from what they were in the parents
restriction enzymes - sticky ends
Insertion
cytosine in DNA is about equal to the percentage of guanine molecules
Recombination
28. The final product of transcription is...
amino acid
Chromosomes
Locus
mRNA
29. Breeding organisms with specific traits in order to produce offspring with identical traits
Artificial selection
Mechanical (morphological) Isolation
Selection pressure
Coevolution
30. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Hybrid
cytoplasm
tRNA
translation
31. The movement of genes between populations as a result of mating of migration
Gene Flow
cytosine in DNA is about equal to the percentage of guanine molecules
translation
Deletion
32. Identical alleles for a gene
Ring Species
Homozygote
GATTACA
Temporal Isolation
33. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Absolute dating
that is complementary to a single strand of DNA
Directional Selection
Substitution
34. The preserved remains or traces of an organism that lived in the past
Testcross
Evo Devo
Fossil
Monophyletic
35. Pea plants
Translocation
Mate Selection
Medel worked with _____
Organic Evolution
36. The movement of individuals into an area
Immigration
Polyploidy
Sexual Selection
Sex Chromosomes
37. Condition in which an organism has extra sets of chromosomes
Divergent Evolution
Genome
Homozygous
Polyploidy
38. These prevent fertilization between species e.g. diff breeding season - mating behaviour
Mold
Artificial selection
Pre -zygotic Mechanisms
Environment
39. Human - like species that existed millions of years ago as witnessed through fossil evidence.
nucleotide
Immigration
Relative dating
Hominid
40. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Mechanical (morphological) Isolation
Selection
Homologous structures
Deme
41. 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.
Comparative Anatomy
Absolute dating
Mutagen
mRNA
42. Process in which DNA is duplicated
replication
Genetic Drift
thymine
Clade
43. 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.
Gene flow
Mechanical (morphological) Isolation
NIche Isolation
Igneous and metamorphic rock
44. 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.
Hybrid
rRNA
Founder effect
Allele Frequency
45. The independant evolution of similar traits - starting from a similar ancestral condition
Parallel Evolution
clinC
Fossil
embryological evidence
46. T or F a codon consist of three nucleotides
Molecular biology
nucleotide
Mendel's Principle of Segregation
true
47. Mating of 2 oism that differ in 2 characters
Isolating Mechanism
Genetic Equilibrium
Sedimentary Rock
Dihybrid Cross
48. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Pentadactyl limb
Natural Selection
Homologous structures
Parallel Evolution
49. The sum total of an organism's requirements; its way of life
Niche
nucleotide
Homologous pair
Recessive
50. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
replication
False RNA
Stabilising
Vestigial organs