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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 change or error in the DNA sequence
deoxyribonucleic acid
transcription
mutation
Coevolution
2. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Nucleotide
Allele
Pentadactyl limb
Centromere
3. Ribosomes are made of...
Selection pressure
Phenotype
mutation
rRNA
4. The gradual changes in gene frequencies in a population due to random events
Fossil
Test Cross
Chromosome mutation
Genetic Drift
5. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Analogous structures
Selection
Bottleneck Effect
Reproductive Isolation
6. Trait evolves overtime; NO common ancestry
analogous (Evolution Evidence)
Hybrid Breakdown
Chargaff
DNA
7. Change in a DNA sequence that affects genetic information
Phenotype
Mutation
RNA polymerase
Extinction
8. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
Genetic Drift
Heterozygous
Dihybrid
Chromosomes
9. Name for oism with one dominant and one recessive allele
Heterozygous
Comparative anatomy
Macroevolution
Geographical Isolation
10. Change in allele frequencies as a result of the migration of a small subgroup of a population
Founder Effect
Translocation
3 nucleotides
Centromere
11. Large - scale evolutionary changes that take place over long periods of time
Macroevolution
Incomplete Dominance
transcription
Homozygous
12. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
Population
geologic time scale
three
Gamete Isolation
13. A body cell
Genetic Equilibrium
Hybrid Inviability
Molecular biology
Somatic
14. Gene
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15. The study relating the evolution of new charateristics to changes in the genes controlling development
If you lose one then you will still have one to back you up.
index fossil
Evo Devo
3 nucleotides
16. The structure on a tRNA molecule that allows it interact with an mRNA molecule
anticodon
Gene flow
3 nucleotides
Mitosis
17. Process by which one species gives rise to two or more species
Hominid
Incomplete Dominance
Fitness
Speciation
18. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.
Mesozoic era
Chiasma
Deletion
Guanine
19. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
Sequential Evolution
nucleotides
NIche Isolation
Mutagen
20. Innate trait; shared ancestry
amino acids
introns
Coevolution
homologous (Evolution Evidence)
21. Hybrid is sterile so biologically unfit
Bottleneck Effect
clinC
Hybrid Infertility
Sex Chromosomes
22. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Dominant
Deme
Molecular biology
its negative charge
23. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Genome
Sedimentary Rock
tRNA
Mass Extinction
24. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Directional Selection
Parallel Evolution
Speciation
analogous (Evolution Evidence)
25. 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
Dihybrid Cross
Fitness
Adaptation
26. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Histone
Deme
Post -zygotic Mechanisms
mutation
27. The sum total of an organism's requirements; its way of life
Evo Devo
ribose - phosphate - and a base
Niche
Artificial selection
28. The environmental factors that favour certain phenotypes
Convergent Evolution
Habitat
Selection pressure
Monohybrid Cross
29. Even if the gametes of the two species meet - fertilization does not occur
Punctuated Equilibrium
analogous (Evolution Evidence)
Gamete Isolation
Allele Frequency
30. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Organic Evolution
Stabilising
hydrogen bonds
Post -zygotic Mechanisms
31. Evolution resulting from small specific genetic changes that can lead to a new subspecies
anticodon
False genes
Coevolution
Microevolution
32. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Reproductive Isolation
Phenotype
Gamete Isolation
Species
33. The study of the past and present distribution of species.
Biogeography
Test Cross
transcription
Genetic Drift
34. Are noncoding sequences in the gene that are removed from RNA after transcription
anticodon
Comparative anatomy
introns
Hybrid Breakdown
35. The independant evolution of similar traits - starting from a similar ancestral condition
Parallel Evolution
Genotype
translation
Hybrid Infertility
36. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
Hybrid Inviability
tRNA
Organic Evolution
37. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
Balanced Polymorphism
proteins
Temporal Isolation
38. 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
Organic Evolution
Homozygous
Species
Population
39. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Natural Selection
Heterozygous
Gene Pool
Evolution
40. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Semi - conservative replication
Speciation
Evo Devo
Germ
41. Natural selection that causes the frequency of a particular allele to move in one direction
Somatic
Directional Selection
index fossil
Pentadactyl limb
42. Gradual evolution within a lineage
Sequential Evolution
Mold
nucleotide
Test Cross
43. Deoxyribonucleic acid carries the genetic code for the proper functioning of an organism. It is composed of 5 carbon sugar (deoxyribose) four bases Adenine - Thymine - Cytosine and Guanine. the sugar is bonded to a phosphate group. This forms a long
Reproductive Isolation
cytosine in DNA is about equal to the percentage of guanine molecules
Disruptive Selection
DNA
44. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
Migration
Geologic Evolution
mRNA
Translocation
45. You mate the unknown genotype with an organism showing the recessive trait. If any of the offspring show the recessive trait - the original unknown parent was heterozygous. If no recessive trats show up - the original parent was homozygous.
Paleozoic era
Hybrid Infertility
Genome
Test Cross
46. Periods of rapid evolution punctuated by periods of little change
Heterozygous
Monophyletic
Punctuated Equilibrium
Geographical Isolation
47. Evolution of living things - based on evidence from the past and present.
Organic Evolution
Allele Frequency
Fitness
nucleus
48. Individual that is heterozygous for two traits; shows the phenotype governed by the dominant alleles but carries the recessive alleles
Dihybrid
Genetic Equilibrium
Natural Selection
mRNA
49. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Ecological Barrier
transcription
Ring Species
tRNA
50. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
embryological evidence
Selection
Natural Selection
stop codon