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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. Recognize and cut DNA at specific sequences usually palindromes
Allele Frequency
restriction enzyme
restriction enzymes - sticky ends
Chromosomes
2. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
restriction enzymes - sticky ends
Directional Selection
Rosalind Franklin
Monohybrid Cross
3. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
nucleotide
Ecological (habitat) Isolation
Population
Hybrid Infertility
4. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
cytosine in DNA is about equal to the percentage of guanine molecules
Vestigial structure
Ice
Insertion
5. The region of the chromosome that holds the two sister chromatids together during mitosis
Natural Selection
Analogous Structures (analogies)
Punnett Square
Centromere
6. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Comparative anatomy
Extinction
Precambrian era
Molecular biology
7. An ancestor that two or more descendants have in common
Common Ancestor
Microevolution
ribose - phosphate - and a base
Igneous and metamorphic rock
8. Synonym for protein; chain of amino acids
polypeptide
Translocation
Parallel Evolution
cytosine in DNA is about equal to the percentage of guanine molecules
9. A geographic gradient in the extent to which a character is developed in a species
Genetic Equilibrium
Heterozygous
clinC
Haploid/Monoploid
10. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Homozygous
Incomplete Dominance
Balanced Polymorphism
Monophyletic
11. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Genetic Equilibrium
Locus
Punnett Square
Autosomes
12. A base found in DNA (but not in RNA). This base pairs with Adenine.
Thymine
Insertion
Precambrian era
The cell uses information from mRNA to produce proteins
13. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Divergent Evolution
molecular evidence
Geographical Isolation
Speciation
14. 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.
Adenine
Mate Selection
Dihybrid Cross
transcription
15. Speciation preceded by a period of geographical isolation
ribose - phosphate - and a base
Allopatric Speciation
Monohybrid
3 nucleotides
16. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Analogous structures
Genome
anticodon
three
17. Movement of organisms ro of from a population
DNA fingerprint
Migration
Environment
Gene pool
18. How often a form of a gene appears in a gene pool
Fitness
Character Displacement
Organic Evolution
Allele Frequency
19. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Cast
Mate Selection
Gene flow
Cenozoic era
20. Change to a chromosome in which a fragment of the chromosome is removed
Genetic Drift
genes
Deletion
clinC
21. T or F If a nucleic acid contain uracil it is DNA
Germ
False RNA
Phyletic Gradualism (anagenesis)
amino acids
22. Even if the gametes of the two species meet - fertilization does not occur
Gamete Isolation
Founder effect
Substitution
Alleles
23. The gradual changes in gene frequencies in a population due to random events
NIche Isolation
Semi - conservative replication
Genetic Drift
Reproductive Isolation
24. 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.
three
Phylogeny
Igneous and metamorphic rock
Homozygote
25. Translation occurs in the...
Post -zygotic Mechanisms
Deme
cytoplasm
its negative charge
26. A mutation in which one nucleotide is replaced by another nucleotide
Paleozoic era
Macroevolution
Precambrian era
Substitution
27. The adaptive increase in pigmentation as a result of human - induced pollutants
Founder effect
Fitness
Industrial Melanism
codon
28. Which type of Rna functions as a blue print of the genetic code
Evolution
Punnett Square
mRNA
Genotype
29. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Balanced Polymorphism
Hybrid Infertility
transcription
Homozygote
30. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
Immigration
trace fossils
Natural Selection
Allele Frequency
31. 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
Sympatric Speciation
Hershey and Chase
Translocation
32. The movement of genes between populations as a result of mating of migration
Histone
Selection pressure
Ice
Gene Flow
33. 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.
geologic time scale
nucleus
Test Cross
Cytosine
34. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
Phenotype
Igneous and metamorphic rock
Rosalind Franklin
Balanced Polymorphism
35. A taxon originating from and including a single common ancestor
Monophyletic
Founder Effect
cytoplasm
Duplication
36. A trait that masks the expression of another trait
Population
Analogous Features
Dominant
molecular evidence
37. The movement of individuals into an area
Immigration
Endemic
Guanine
Duplication
38. Gradual evolution within a lineage
Sequential Evolution
Mechanical (morphological) Isolation
Mendel's traits are now called _____ found on DNA
Test Cross
39. The banding pattern of a persons DNA after being cut and run on gel is called
Bottle neck effect
Dihybrid Cross
Alleles
DNA fingerprint
40. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Chiasma
Heterozygous
mRNA
Dihybrid
41. Determined the complete double helical structure of DNA
watson and crick
Adaptive Radiation
Phyletic Gradualism (anagenesis)
Population
42. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
DNA fingerprint
stop codon
The cell uses information from mRNA to produce proteins
watson and crick
43. Is a sequence of DNA that codes for a protein and thus determines a trait. This is because the sequence of bases code for certain proteins.
Substitution
Gene
Guanine
Recessive
44. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
stop codon
Testcross
deoxyribonucleic acid
Stabilising selection
45. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Gamete Isolation
clinC
Semi - conservative replication
Ring Species
46. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
Homozygous
Allele Frequency
Crossing over
Directional Selection
47. T or F A cloned organism has the same proteins as another organism
Genetic Drift
Petrification
Haploid/Monoploid
False genes
48. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
Homologous Structures
Analogous Structures (analogies)
Testcross
Phenotype
49. Is the evolutionary process whereby a population becomes better suited to its habitat
Adaptation
Fossil
Cytosine
Organic Evolution
50. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Mate Selection
Selection pressure
Sedimentary Rock
Alleles