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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. Populations that can interbreed with neighboring populations but not with populations separated by larger geographical distances
Mesozoic era
Ring Species
body fossils
Mass Extinction
2. A combining of genes or characters different from what they were in the parents
Test Cross
Species
Recombination
Homologous pair
3. The gradual changes in gene frequencies in a population due to random events
Niche
tRNA
Genetic Drift
Heterozygous
4. Hybrid is sterile so biologically unfit
Cytosine
Hybrid Infertility
Selection pressure
geologic time scale
5. 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.
Mitosis
Variation
Duplication
embryological evidence
6. 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.
Ring Species
Gene Pool
Genetic Drift
Dominant
7. One of the identical rods of a chromosome.
Analogous Features
Chromatid
Common Ancestor
Chromosomes
8. Evolution of living things - based on evidence from the past and present.
nucleotide
Insertion
Balanced Polymorphism
Organic Evolution
9. Evolutionary process in which a species or related species folllow different evolutionary paths to eventually become less related
Nucleotide
Divergent Evolution
codon
Macroevolution
10. Dna moves during electrophoresis because of...
Precambrian era
tRNA
Sexual Selection
its negative charge
11. The banding pattern of a persons DNA after being cut and run on gel is called
Gene mutation
Comparative Anatomy
Testcross
DNA fingerprint
12. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Gene mutation
Precambrian era
Double Helix
rRNA
13. A codon is made of...
3 nucleotides
Environment
RNA polymerase
Crossing over
14. The complete genetic material contained in an individual
Duplication
3 nucleotides
Genome
Double Helix
15. Era of recent life that began about 66 million years ago and continues today; includes the first appearance Hominids
Genotype
Evolution
Homozygous
Cenozoic era
16. Inherited feature that tends to prevent species from interbreeding with other species
Comparative anatomy
Isolating Mechanism
Evo Devo
Industrial Melanism
17. process in which homologous chromosomes exchange portions of their chromatids during meiosis.
Selection pressure
Natural Selection
Crossing over
Hershey and Chase
18. During transcription an RNA molecule is formed
geologic time scale
GATTACA
Parallel Evolution
that is complementary to a single strand of DNA
19. A population partially isolated from other populations of the same species
Somatic
Reproductive Isolation
Deme
amino acids
20. An ancestor that two or more descendants have in common
codon
Common Ancestor
Mitosis
transcription
21. How often a particular gene occurs in the population
Allele
Gene frequency
Industrial Melanism
Directional Selection
22. Closely related species occupying different habitats - niches preventing them from interbreeding
mRNA
Ecological Barrier
RNA polymerase
Deletion
23. Movement of organisms ro of from a population
Hybrid Inviability
Migration
Heterozygous
Monophyletic
24. Are noncoding sequences in the gene that are removed from RNA after transcription
introns
amino acid
Autosomes
Geographical Isolation
25. Different alleles for a gene
Diploid
Stabilising
Comparative Embryology
Heterozygote
26. Of a cell or organism having two sets of homologous chromosomes or twice the haploid number
restriction enzymes - sticky ends
Gene frequency
Diploid
tRNA
27. Mating of an individual of unknown genotype but dominant phenotype w/ a homozygous recessive individual
Endemic
Behavioral (ethological) Isolation
Testcross
Homologous Structures
28. Structures in different but related species that are derived from the same ancestral structure but now serve different purposes.
trace fossils
Allopatric Speciation
translation
Homologous Structures
29. Process by which one species gives rise to two or more species
Speciation
Clade
tRNA
Cast
30. These prevent fertilization between species e.g. diff breeding season - mating behaviour
its negative charge
Punctuated Equilibrium
codon
Pre -zygotic Mechanisms
31. Process by which individuals that are better suited to their environment survive and reproduce most successfully; also called survival of the fittest
Meiosis
clinC
Natural Selection
trace fossils
32. A small simple structure (as a fertilized egg) from which new tissue can develop into a complete organism. It is also a cell
Sedimentary Rock
polypeptide
Germ
index fossil
33. Used x ray cyrstallography to create an image of DNA
Rosalind Franklin
Bottleneck Effect
Natural Selection
Gene flow
34. Embryos of similar organisms have very similar early development indicating similar DNA at work
Molecular biology
Genotype
Endemic
Comparative Embryology
35. 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.
Somatic
Mutation
Mate Selection
Amber
36. Building block of a protein
ribose - phosphate - and a base
amino acid
Analogous Features
Environment
37. Form of reproductive isolation in which tere are differences in species courtship behavior
Behavioral (ethological) Isolation
Diploid
Species
Ring Species
38. Physical characteristics of an organism based on its genotype. e.g. Plant that has a genotype of TT will have a phenotype of Tall.
thymine
Phenotype
cytosine in DNA is about equal to the percentage of guanine molecules
Duplication
39. DNA is made of...
Monohybrid Cross
nucleotides
Dihybrid
Locus
40. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
Selection
Homologous pair
Allele
Adaptation
41. A geographic gradient in the extent to which a character is developed in a species
Hybrid Infertility
clinC
Phenotype
Autosomes
42. 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.
restriction enzymes - sticky ends
Histone
Comparative Anatomy
Gametic
43. The gradual changes in gene frequencies in a population due to random events
Chromosomes
Mutagen
Genetic Drift
Gene frequency
44. Layers of compressed sedimentary rock demonstrate the order or sequence at which events occurred. Cannot delineate the exact point of time - but is able to distinguish the order of events.
transcription
Relative dating
true
Species
45. Structure present in an organism however does NOT have a known function. May link organisms with similar vestigial structures. Example: appendix - coccyx bone - whale leg bones.
Stasis
Vestigial structure
Sexual Selection
Geographical Isolation
46. Which structure contains anticodons
tRNA
3 nucleotides
Heterozygote
replication
47. Change of an organism over time. This can be caused by changes in in habitat or need to adapt for survival.
Evolution
rRNA
Ecological Barrier
tRNA
48. The comparison of the structures of different organisms
anticodon
Comparative anatomy
restriction enzyme
Population
49. The preserved remains or traces of an organism that lived in the past
Mutation
Fossil
Homozygous
Industrial Melanism
50. Determined the complete double helical structure of DNA
Habitat
Stabilising selection
Phyletic Gradualism (anagenesis)
watson and crick