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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. Describes a cell - nucleus - or organism that has only one set of unpaired chromosomes
Balanced Polymorphism
Mutation
Haploid/Monoploid
Independent assortment
2. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Testcross
Disruptive Selection
Phenotype
body fossils
3. Ribosomes are made of...
Behavioral (ethological) Isolation
Genetic Equilibrium
Habitat
rRNA
4. Found only in that country
Population
transcription
Ring Species
Endemic
5. Determined the concept of complementary base pairing
Chargaff
mutation
Chromosome mutation
Gametic
6. Ribosomal RNA; type of RNA that makes up part of the ribosome
Test Cross
Germ
rRNA
Gene flow
7. Science dealing with DNA and protein synthesis of living organisms. Manipulation of DNA.
Immigration
Molecular biology
Vestigial structure
DNA fingerprint
8. Organisms with a similar underlying structure - but different function. Example: bird - bat and dolphin 'arm'. Shows a common ancestral link.
Homologous structures
Recombination
Microevolution
Precambrian era
9. Mutation where an extra base is added
Insertion
Gene mutation
Monohybrid Cross
Homozygous
10. Any agent that can cause a change in DNA
Absolute dating
Mutagen
Hominid
Pre -zygotic Mechanisms
11. Three mRNA nucleotides that code for a specific amino acid
Gene Flow
index fossil
Temporal Isolation
codon
12. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
amino acid
Artificial selection
Cenozoic era
Adenine
13. The offspring of a cross between two inbred lines within a single species. May also refer to the offspring of across between two species
Ecological (habitat) Isolation
Hybrid
Petrification
3 nucleotides
14. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
index fossil
Punnett Square
Pentadactyl limb
Convergent Evolution
15. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Ice
Adaptation
Gene Flow
transcription
16. A limb with five digits (fingers)
Pentadactyl limb
False genes
genes
Organic Evolution
17. 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.
Environment
Double Helix
Petrification
Adaptation
18. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Genetic Equilibrium
Hybrid Infertility
Ring Species
Hominid
19. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Nucleotide
Somatic
Phylogeny
Deme
20. 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.
Fossils
Test Cross
Analogous Structures (analogies)
Selection pressure
21. A point of overlap of paired chromatids at which fusion and exchange of genetic material (crossing over) occurs during prophase I of meiosis.
DNA fingerprint
Ecological (habitat) Isolation
Chiasma
Organic Evolution
22. Chromosomes are collections of many
Ecological (habitat) Isolation
that is complementary to a single strand of DNA
rRNA
genes
23. The signal on a mRNA molecule that designates the end of the coding sequence is called the...
true
stop codon
Genetic Equilibrium
Gene flow
24. A taxon originating from and including a single common ancestor
Monophyletic
Petrification
Comparative embryology
Fossil
25. Change in a DNA sequence that affects genetic information
Double Helix
Adenine
Autosomes
Mutation
26. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Macroevolution
Fossils
Heritable variation
tRNA
27. The adaptive increase in pigmentation as a result of human - induced pollutants
Alleles
Industrial Melanism
Coevolution
three
28. Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
gel electrophoresis
Locus
Chromosomes
Comparative anatomy
29. Building block of a nucleic acid (DNA and RNA)
nucleotide
Isolating Mechanism
Genotype
Species
30. Speciation which does not involve a period of geographical separation
Founder effect
Sympatric Speciation
Mesozoic era
cytosine in DNA is about equal to the percentage of guanine molecules
31. Middle life (245-144 million years ago); rise of mammals and dinosaurs; the rise of birds; extinction of dinosaurs - rise of flowering plants
tRNA
Allele Frequency
Fossil
Mesozoic era
32. 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.
rRNA
Analogous Structures (analogies)
nucleotide
Absolute dating
33. Recognize and cut DNA at specific sequences usually palindromes
Microevolution
Punctuated Equilibrium
restriction enzyme
Geographical Isolation
34. T or F A cloned organism has the same proteins as another organism
False genes
Dominant
Macroevolution
Absolute dating
35. The preserved remains or traces of an organism that lived in the past
False RNA
Fossil
Directional Selection
deoxyribonucleic acid
36. Translation occurs in the...
cytoplasm
Genetic Equilibrium
Balanced Polymorphism
False genes
37. What is one benefit for having two strands of DNA?
Gametic
Comparative Embryology
Mendel's Principle of Segregation
If you lose one then you will still have one to back you up.
38. Transcrition occurs in the...
nucleus
Natural Selection
cytoplasm
introns
39. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
The cell uses information from mRNA to produce proteins
Gene frequency
restriction enzymes - sticky ends
Monophyletic
40. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Haploid/Monoploid
embryological evidence
stop codon
Relative dating
41. A trait that masks the expression of another trait
Dominant
Dihybrid
Hybrid Breakdown
Diploid
42. Nucleotides that control which amino acids are added during protein synthesis
replication
Codon
Sex Chromosomes
Medel worked with _____
43. A mutation in which one nucleotide is replaced by another nucleotide
molecular evidence
Gene pool
Recombination
Substitution
44. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
geologic time scale
Substitution
Thymine
45. Geologic period that followed the Precambrian;means 'ancient life' - early life (570-286 million years ago); single cell organisms - shells - mollusks - rise of first vertebrates - rise of land plants - amphibians - insects - seed plants - and trees
Gene frequency
Artificial selection
Paleozoic era
Gametic
46. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Macroevolution
restriction enzyme
Hybrid
anticodon
47. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
Gene Pool
three
Monohybrid Cross
translation
48. Movement of organisms ro of from a population
Hershey and Chase
Chromatid
Chromosomes
Migration
49. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Analogous Structures (analogies)
analogous (Evolution Evidence)
rRNA
Coevolution
50. 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.
Founder effect
Geologic Evolution
Fitness
Mutagen