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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. Determined the concept of complementary base pairing
Founder Effect
Deletion
Genetic Equilibrium
Chargaff
2. The number of times an allele appears in a population
Allele Frequency
amino acids
Dihybrid
Phenotype
3. The structure on a tRNA molecule that allows it interact with an mRNA molecule
Balanced Polymorphism
DNA
Geologic Evolution
anticodon
4. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Chromosome mutation
Gamete Isolation
Sexual Selection
Coevolution
5. Organ no longer serves a function
The cell uses information from mRNA to produce proteins
Isolating Mechanism
vestigial (Evolution Evidence)
nucleus
6. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Fossils
Selection pressure
Post -zygotic Mechanisms
Divergent Evolution
7. Evolution of superficial phenotypic similarity of form as a result of similar selection pressures
Niche
Convergent Evolution
Natural Selection
embryological evidence
8. A DNA double helix is held together in the center by between nitrogenous bases
Genotype
Chargaff
hydrogen bonds
Relative dating
9. In the event of a sperm fertilizing an egg of another species - mechanisms that prevent result being fruitful
Common Ancestor
Translocation
Deletion
Post -zygotic Mechanisms
10. The banding pattern of a persons DNA after being cut and run on gel is called
anticodon
DNA fingerprint
Testcross
Comparative embryology
11. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Selection pressure
Precambrian era
deoxyribose and phosphate
Alleles
12. Is a trait that is more expressed than another trait. Is written in capital letters for Genotype. E.g Tall genotype is TT or Tt where T is the allele for tall trait and t is the trait for small. T will be expressed more.
mutation
Dominant
Divergent Evolution
rRNA
13. Copying the code from DNA onto mRNA
Analogous structures
transcription
NIche Isolation
Germ
14. A change in the base sequence of a gene
Gene mutation
Gene
Allopatric Speciation
Pentadactyl limb
15. Determined the complete double helical structure of DNA
Vestigial structure
Microevolution
watson and crick
Insertion
16. Movement of organisms ro of from a population
Chargaff
Founder effect
Organic Evolution
Migration
17. The evolutionary process by which a species becomes better suited to its niche.
The cell uses information from mRNA to produce proteins
Selection
Substitution
Adaptation
18. It means chromosomes are paired. One of each chromosome in a pair originates from the father and one from the mother. They affect the same trait - but don't necessarily cause the same expression of the trait.
Industrial Melanism
Homologous pair
Divergent Evolution
Gene mutation
19. What does DNA stand for...
Polyploidy
Heritable variation
RNA polymerase
deoxyribonucleic acid
20. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
geologic time scale
Sympatric Speciation
Species
embryological evidence
21. Chromosomes that determine the sex of an individual. These are X for female and Y for male. The female egg is an X while the male sperm can be X or Y
Sex Chromosomes
watson and crick
Balanced Polymorphism
Natural Selection
22. Speciation preceded by a period of geographical isolation
Allopatric Speciation
Chargaff
Macroevolution
Heterozygous
23. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Mutagen
Chromatid
Stabilising selection
Biogeography
24. Process by which an organism is slowly turned to stone as the body is replaced by minerals.
Genetic Equilibrium
Stabilising selection
Isolating Mechanism
Petrification
25. Gradual evolution within a lineage
3 nucleotides
Sequential Evolution
Hybrid
Coevolution
26. What is one benefit for having two strands of DNA?
Monohybrid
If you lose one then you will still have one to back you up.
Fossil
Chromosomes
27. The sum total of an organism's requirements; its way of life
Monophyletic
amino acid
Niche
Medel worked with _____
28. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Heterozygote
Speciation
Cenozoic era
Paleozoic era
29. T or F a codon consist of three nucleotides
true
Punctuated Equilibrium
Centromere
Nucleotide
30. An organism that has characteristics resulting from chromosomal alteration. This is a result of crossing over of the chromosomes during Meiosis - mutations and random segregation.
Variation
Pre -zygotic Mechanisms
Mendel's traits are now called _____ found on DNA
Molecular biology
31. A copy of a gene is made during a process called this
Speciation
transcription
The cell uses information from mRNA to produce proteins
Homologous structures
32. A change or error in the DNA sequence
Geographical Isolation
mutation
Gene mutation
Hybrid Breakdown
33. Embryos of similar organisms have very similar early development indicating similar DNA at work
Comparative Embryology
Hershey and Chase
RNA polymerase
deoxyribose and phosphate
34. Pea plants
Medel worked with _____
Chiasma
Genetic Drift
Incomplete Dominance
35. Building block of a nucleic acid (DNA and RNA)
Chiasma
Recombination
nucleotide
Phylogeny
36. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
Recessive
Dominant
Biogeography
Homologous Structures
37. A body cell
deoxyribose and phosphate
Dihybrid
vestigial (Evolution Evidence)
Somatic
38. Ribosomal RNA; type of RNA that makes up part of the ribosome
analogous (Evolution Evidence)
Sex Chromosomes
Alleles
rRNA
39. The type of environment in which an organism or group normally lives or occurs
transcription
three
Habitat
Endemic
40. A change in the base sequence of DNA; the ultimate source of new alleles
Chiasma
proteins
Mutation
Recombination
41. Synonym for protein; chain of amino acids
polypeptide
Amber
Selection
Convergent Evolution
42. Transfer RNA; type of RNA that carries amino acids to the ribosome
polypeptide
Guanine
tRNA
Independent assortment
43. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Codon
Molecular biology
Directional Selection
Adaptive Radiation
44. Any agent that can cause a change in DNA
Mutagen
transcription
Gene mutation
Allele Frequency
45. Evolution of the earth - which is hypothesized to have been formed over 4.6 billion years ago.
body fossils
thymine
Geologic Evolution
Polyploidy
46. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
deoxyribonucleic acid
Nucleotide
Test Cross
Balanced Polymorphism
47. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
cytoplasm
Medel worked with _____
Population
Adenine
48. How often a form of a gene appears in a gene pool
clinC
False genes
analogous (Evolution Evidence)
Allele Frequency
49. Periods of little adaptive change
Stasis
Crossing over
stop codon
Genotype
50. Is found in DNA
Gamete Isolation
Gene mutation
Recessive
thymine