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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. Separates DNA by size
tRNA
gel electrophoresis
Locus
Divergent Evolution
2. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Incomplete Dominance
Mass Extinction
Independent assortment
Thymine
3. Term used to refer to an organism that has two identical alleles for a particular trait. e.g TT is the homozygous genotype for Tall.
Divergent Evolution
Phylogeny
Migration
Homozygous
4. Selection for the ability to obtain a mate
Sexual Selection
Genetic Drift
Adenine
Paleozoic era
5. Translation occurs in the...
cytoplasm
tRNA
Homologous pair
Comparative Embryology
6. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
body fossils
Punnett Square
geologic time scale
embryological evidence
7. Periods of little adaptive change
Meiosis
Stasis
Incomplete Dominance
Precambrian era
8. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
vestigial (Evolution Evidence)
Biogeography
Germ
Gene pool
9. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Fossils
mRNA
rRNA
Autosomes
10. A group of organisms whose members are sufficiently alike to be able to reproduce and produce fertile offspring and who are unable to reproduce with other such groups
Homozygous
Species
Directional Selection
Translocation
11. 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.
Immigration
translation
watson and crick
Mate Selection
12. Separation of species or populations so that they cannot interbreed and produce fertile offspring
Speciation
Reproductive Isolation
Microevolution
Nucleotide
13. Actual remains of an organism such as bones - teeth - shells - etc.
Crossing over
Polyploidy
Allele
body fossils
14. Predicts the possible outcome of a genetic cross.
translation
Test Cross
Cenozoic era
Punnett Square
15. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Gene Flow
Testcross
Coevolution
Pentadactyl limb
16. Describes the isolation of a physical barrier e.g. body of water (ocean) or mountains
Ecological Barrier
translation
Geographical Isolation
Alleles
17. What happens during the process of translation
The cell uses information from mRNA to produce proteins
Hybrid Breakdown
Pentadactyl limb
Selection
18. Is found in DNA
thymine
Post -zygotic Mechanisms
Phenotype
Comparative anatomy
19. What is one benefit for having two strands of DNA?
Double Helix
Gene Flow
Gene pool
If you lose one then you will still have one to back you up.
20. To create a recombinant DNA molecule - one would have to first cut two DNAs with creating before pasting them together
three
Genetic Drift
Haploid/Monoploid
restriction enzymes - sticky ends
21. A body cell
Chromatid
Sequential Evolution
Somatic
Sympatric Speciation
22. Chromosomes are collections of many
Geologic Evolution
genes
Test Cross
Phyletic Gradualism (anagenesis)
23. The study relating the evolution of new charateristics to changes in the genes controlling development
vestigial (Evolution Evidence)
Evo Devo
Balanced Polymorphism
Hybrid
24. Features of different species tat are similar in function but not necessarily in structure and in which the similarity is not the result of common ancestry
Genetic Equilibrium
mRNA
anticodon
Analogous Structures (analogies)
25. Process by which one species gives rise to two or more species
Double Helix
Analogous Structures (analogies)
Speciation
Cenozoic era
26. Dna moves during electrophoresis because of...
Dominant
its negative charge
Pre -zygotic Mechanisms
Analogous Structures (analogies)
27. Organ no longer serves a function
vestigial (Evolution Evidence)
mutation
Heterozygote
embryological evidence
28. A change in the base sequence of DNA; the ultimate source of new alleles
Mutation
Molecular biology
Gene frequency
Germ
29. When zygote does not complete development or is physically weaker than normal
Immigration
Substitution
Hybrid Inviability
Adaptation
30. A group of organisms of the same species occupying a given area.
Industrial Melanism
Deme
Population
Hershey and Chase
31. Because of base pairing in DNA the amount of
cytosine in DNA is about equal to the percentage of guanine molecules
mRNA
3 nucleotides
amino acids
32. A population partially isolated from other populations of the same species
Cytosine
Deme
Phyletic Gradualism (anagenesis)
Sequential Evolution
33. Change in a DNA sequence that affects genetic information
Mutation
chromatin
watson and crick
deoxyribonucleic acid
34. A fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found
index fossil
Stasis
watson and crick
Punctuated Equilibrium
35. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Homologous structures
Organic Evolution
Genetic Equilibrium
NIche Isolation
36. Cell division that produces reproductive cells or gamates.This occurs in the gonads (testicle and ovaries in animals) Here the chromosome number is halved the original amount. (each new cell has a haploid number = n) All daughter cells are not geneti
Speciation
Behavioral (ethological) Isolation
Meiosis
Homozygous
37. A process where the organisms that have traits that aid in its survival (adaptive traits) will reproduce to pass that trait to futher generations thus increasing the frequency of that trait in the population. Vice versa traits that reduce the chance
Immigration
Molecular biology
Natural Selection
Vestigial structure
38. 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.
Germ
its negative charge
Evolution
Gene
39. A change or error in the DNA sequence
mRNA
Mendel's Principle of Segregation
mutation
Allele Frequency
40. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
Locus
Phyletic Gradualism (anagenesis)
Relative dating
Homozygous
41. A DNA double helix is held together in the center by between nitrogenous bases
Sympatric Speciation
Migration
hydrogen bonds
deoxyribose and phosphate
42. Molecules that join together to form DNA and RNA. Monomers that make up a nucleic acid
Selection pressure
The cell uses information from mRNA to produce proteins
Nucleotide
Mendel's traits are now called _____ found on DNA
43. The inherited characteristic often masked by the dominant characteristic and not seen in an organism. e.g. Tt plant will still be tall. Where T is the dominant trait for tall and t is the recessive trait for small.
Recessive
clinC
mutation
Crossing over
44. 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.
Balanced Polymorphism
Sex Chromosomes
Deme
Dominant
45. Movement of organisms ro of from a population
Migration
Heterozygous
Species
Divergent Evolution
46. Another term for pure breeding
Mutagen
Homozygous
Polyploidy
Temporal Isolation
47. Form of reproductive isolation in which structural differences in the anatomy of reproductive organs prevent sperm transfer between individuals of different species
Phenotype
Mechanical (morphological) Isolation
Chiasma
stop codon
48. The independant evolution of similar traits - starting from a similar ancestral condition
Parallel Evolution
Population
Hybrid Inviability
homologous (Evolution Evidence)
49. Is a base found in DNA and RNA. This base pairs with Cytosine in DNA
Guanine
Dihybrid Cross
Gene
RNA polymerase
50. Any agent that can cause a change in DNA
Allele Frequency
Cytosine
Mutagen
Mitosis