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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. Is a base found in DNA and RNA. Cytosine pairs with Guanine in DNA
Cytosine
Sequential Evolution
Ring Species
trace fossils
2. Actual remains of an organism such as bones - teeth - shells - etc.
Mutation
body fossils
Clade
Monophyletic
3. Another term for pure breeding
Fitness
Homozygous
Gene flow
stop codon
4. Organ no longer serves a function
Sedimentary Rock
Heterozygote
vestigial (Evolution Evidence)
If you lose one then you will still have one to back you up.
5. Separates DNA by size
Mendel's traits are now called _____ found on DNA
nucleotide
gel electrophoresis
Mold
6. The complete genetic material contained in an individual
Directional Selection
Evolution
Incomplete Dominance
Genome
7. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Nucleotide
GATTACA
Artificial selection
Stabilising selection
8. The formation of new species as a result of evolution
Mold
mRNA
three
Speciation
9. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Adaptive Radiation
False RNA
Gene frequency
Clade
10. Change to a chromosome in which a fragment of one chromosome attaches to a nonhomologous chromosome
Chromosome mutation
Translocation
Common Ancestor
Mold
11. 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.
Test Cross
Ring Species
Post -zygotic Mechanisms
tRNA
12. Speciation which does not involve a period of geographical separation
Allele
Sympatric Speciation
Disruptive Selection
Gene Pool
13. Which structure contains anticodons
Adaptation
Amber
proteins
tRNA
14. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
watson and crick
Mechanical (morphological) Isolation
Genome
deoxyribonucleic acid
15. Speciation preceded by a period of geographical isolation
introns
Gene flow
Migration
Allopatric Speciation
16. T or F A cloned organism has the same proteins as another organism
Stasis
Haploid/Monoploid
False genes
Speciation
17. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
true
Comparative embryology
Fossils
Phylogeny
18. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Rosalind Franklin
Mendel's traits are now called _____ found on DNA
Directional Selection
Coevolution
19. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Testcross
Monohybrid Cross
Post -zygotic Mechanisms
Heterozygote
20. The region of the chromosome that holds the two sister chromatids together during mitosis
nucleotides
DNA fingerprint
Gene Flow
Centromere
21. Movement of alleles into or out of a population due to the migration of individuals to or from the population
tRNA
Niche
Phyletic Gradualism (anagenesis)
Gene flow
22. Closely related species occupying different habitats - niches preventing them from interbreeding
nucleus
Guanine
Monophyletic
Ecological Barrier
23. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Ecological Barrier
Hershey and Chase
Polyploidy
Comparative embryology
24. Mutation where an extra base is added
Temporal Isolation
Insertion
Mate Selection
three
25. Earth's history organized into four eras: Precambrian - Paleozoic - Mesozoic - and Cenozoic
Dominant
Recessive
geologic time scale
Gene frequency
26. Similar DNA sequences or protein structures (such as hemoglobin) may link different species to a similar ancestor.
Population
gel electrophoresis
molecular evidence
Organic Evolution
27. The final product of transcription is...
mRNA
Comparative Embryology
Founder effect
Selection
28. Used x ray cyrstallography to create an image of DNA
RNA polymerase
Meiosis
Fitness
Rosalind Franklin
29. Type of sympatric speciation that occurs when a new species is formed because of a change in microhabitats
molecular evidence
NIche Isolation
introns
watson and crick
30. Hybrid is sterile so biologically unfit
Hybrid Infertility
Macroevolution
Mold
index fossil
31. Movement of organisms ro of from a population
Migration
Coevolution
amino acid
vestigial (Evolution Evidence)
32. Recognize and cut DNA at specific sequences usually palindromes
Habitat
Paleozoic era
restriction enzyme
Variation
33. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Cenozoic era
Reproductive Isolation
Punctuated Equilibrium
Comparative anatomy
34. Even if the gametes of the two species meet - fertilization does not occur
Sequential Evolution
Gamete Isolation
Organic Evolution
Ice
35. 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
Macroevolution
DNA
clinC
Selection
36. Selection acting against the middle of a range of variation
hydrogen bonds
Pre -zygotic Mechanisms
Disruptive Selection
Mutation
37. Predicts the possible outcome of a genetic cross.
Dihybrid Cross
Convergent Evolution
Punnett Square
Gamete Isolation
38. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
its negative charge
Haploid/Monoploid
Directional Selection
Histone
39. One of the identical rods of a chromosome.
gel electrophoresis
Chromatid
Migration
translation
40. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Amber
If you lose one then you will still have one to back you up.
Behavioral (ethological) Isolation
Igneous and metamorphic rock
41. The evolutionary history/geneology of a group of organisms (a tree thingy)
Phylogeny
Speciation
chromatin
deoxyribonucleic acid
42. A mutation in which one nucleotide is replaced by another nucleotide
Heritable variation
Pentadactyl limb
Mendel's traits are now called _____ found on DNA
Substitution
43. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Chromosome mutation
Geographical Isolation
Genotype
Reproductive Isolation
44. The gradual changes in gene frequencies in a population due to random events
Sequential Evolution
Speciation
amino acids
Genetic Drift
45. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Ice
Relative dating
Sedimentary Rock
Balanced Polymorphism
46. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.
Testcross
False genes
Ecological Barrier
Double Helix
47. Large - scale evolutionary changes that take place over long periods of time
Diploid
Genetic Equilibrium
cytoplasm
Macroevolution
48. An ancestor that two or more descendants have in common
Ice
Common Ancestor
Petrification
Alleles
49. Natural selection that causes the frequency of a particular allele to move in one direction
gel electrophoresis
Directional Selection
Bottle neck effect
Chromatid
50. Disappearance of a species from all parts of its geographical range
Post -zygotic Mechanisms
Character Displacement
Testcross
Extinction