SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
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 the isolation of a physical barrier e.g. body of water (ocean) or mountains
Artificial selection
Geographical Isolation
Insertion
Absolute dating
2. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Absolute dating
mRNA
Phenotype
Germ
3. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
nucleotides
RNA polymerase
chromatin
Phyletic Gradualism (anagenesis)
4. Proteins are made of...
Crossing over
amino acids
Clade
Character Displacement
5. Any indirect evidence of life preserved as an impression in rock; trails - footprints - tracks - burrows - and bite marks
trace fossils
Stabilising
Habitat
Absolute dating
6. Any agent that can cause a change in DNA
Hershey and Chase
Mutagen
anticodon
trace fossils
7. Is any chromosome that is not a sex chromosome.
Guanine
Codon
Autosomes
three
8. Used x ray cyrstallography to create an image of DNA
Dihybrid
Rosalind Franklin
Gene flow
Paleozoic era
9. Which structure contains anticodons
Gamete Isolation
tRNA
Phenotype
Genotype
10. The sum total of an organism's requirements; its way of life
Niche
ribose - phosphate - and a base
Mutation
homologous (Evolution Evidence)
11. Separates DNA by size
Stasis
homologous (Evolution Evidence)
gel electrophoresis
Test Cross
12. Speciation which does not involve a period of geographical separation
Sympatric Speciation
Heritable variation
Homologous structures
Population
13. Chromosomes are collections of many
Migration
replication
genes
Gene frequency
14. How often a form of a gene appears in a gene pool
Allele Frequency
Selection pressure
Ring Species
Mendel's Principle of Segregation
15. Breeding organisms with specific traits in order to produce offspring with identical traits
Monophyletic
ribose - phosphate - and a base
Artificial selection
Alleles
16. Features that are superficially similar but have different modes of development
Analogous Features
Adaptation
Comparative anatomy
hydrogen bonds
17. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Cytosine
Precambrian era
Mold
Immigration
18. Is the evolutionary process whereby a population becomes better suited to its habitat
Adaptation
mRNA
RNA polymerase
Polyploidy
19. Building block of a protein
Comparative anatomy
Immigration
amino acid
Genetic Equilibrium
20. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Stabilising
Meiosis
Sub - species
rRNA
21. Trait where heterozygous is a blending of two alleles
Deme
cytoplasm
Hybrid Inviability
Genotype
22. Term used to refer to an organism that has two different alleles for the same trait. e.g Tt is the heterozygous genotype for Tall.
mRNA
Heterozygous
Cast
tRNA
23. Method of replication that implies that each new strand of DNA is half original and half new
Chromatid
If you lose one then you will still have one to back you up.
Diploid
Semi - conservative replication
24. A group of organisms of the same species occupying a given area.
Population
Organic Evolution
clinC
Dominant
25. Organ that serves no useful function in an organism
Vestigial organs
mRNA
Cytosine
Chromatid
26. Speciation preceded by a period of geographical isolation
Extinction
stop codon
Genetic Drift
Allopatric Speciation
27. 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
Diploid
Allele
geologic time scale
28. T or F a codon consist of three nucleotides
Parallel Evolution
true
Allele Frequency
Rosalind Franklin
29. Periods of little adaptive change
Stasis
three
Environment
Polyploidy
30. Organisms with similar functions - but different underlying structure. Example: bird and insect wing. These structures do NOT show a common ancestral link.
Analogous structures
Hershey and Chase
Genetic Drift
molecular evidence
31. Relatively rapid proliferation from an ancestral type into new types which fill a diversity of ecological niches
Vestigial structure
Adaptive Radiation
Pre -zygotic Mechanisms
Petrification
32. The reduction of a population - typically by a natural disaster - such that the surviving population is no longer genetically representative of the original population.
Bottleneck Effect
Mutation
nucleotides
Convergent Evolution
33. The gradual changes in gene frequencies in a population due to random events
Mendel's Principle of Segregation
Genetic Drift
Comparative Embryology
Gene
34. The movement of individuals into an area
Immigration
3 nucleotides
Test Cross
The cell uses information from mRNA to produce proteins
35. A change or error in the DNA sequence
hydrogen bonds
mutation
Analogous structures
Test Cross
36. Natural selection that causes the frequency of a particular allele to move in one direction
Double Helix
Directional Selection
Convergent Evolution
GATTACA
37. When zygote does not complete development or is physically weaker than normal
Polyploidy
Hybrid Inviability
Paleozoic era
Translocation
38. Copying the code from DNA onto mRNA
its negative charge
Vestigial structure
Homologous pair
transcription
39. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
anticodon
Allele Frequency
Haploid/Monoploid
40. Change in a DNA sequence that affects genetic information
Petrification
geologic time scale
Absolute dating
Mutation
41. Condition in which an organism has extra sets of chromosomes
Common Ancestor
Homologous structures
Polyploidy
DNA fingerprint
42. Three mRNA nucleotides that code for a specific amino acid
Heterozygote
index fossil
codon
Cytosine
43. Pea plants
Test Cross
watson and crick
Medel worked with _____
Heterozygous
44. Reciprocal evolution in two species as a result of the selection pressure each imposes upon the other
Dominant
Coevolution
Mendel's Principle of Segregation
Substitution
45. Evolution resulting from small specific genetic changes that can lead to a new subspecies
Microevolution
watson and crick
mutation
Common Ancestor
46. The preserved remains or traces of an organism that lived in the past
Centromere
Fossil
Punnett Square
analogous (Evolution Evidence)
47. A type of barrier between species; the species remain isolated because male and femal gametes of the different species cannot fuse - or they die before they unite.
Somatic
Adenine
Test Cross
Gametic
48. A mutation in which one nucleotide is replaced by another nucleotide
Substitution
Gene mutation
mRNA
GATTACA
49. 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
Bottleneck Effect
Migration
DNA
Biogeography
50. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
translation
Post -zygotic Mechanisms
Adenine
thymine