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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. The gradual changes in gene frequencies in a population due to random events
Genetic Drift
False genes
Ecological Barrier
Directional Selection
2. A base found in DNA (but not in RNA). This base pairs with Adenine.
Test Cross
Balanced Polymorphism
NIche Isolation
Thymine
3. The preserved remains or traces of an organism that lived in the past
Fossil
Biogeography
Coevolution
Hybrid Breakdown
4. Organ no longer serves a function
If you lose one then you will still have one to back you up.
Deletion
Directional Selection
vestigial (Evolution Evidence)
5. Similar embryological structures in different species - such as gill slits - may demonstrate that these species share a common ancestor.
Histone
Chromosomes
Population
embryological evidence
6. 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.
Clade
Mate Selection
restriction enzymes - sticky ends
embryological evidence
7. A process that results in an allele having a different probability of remaining in the gene pool compared with that of another allele
anticodon
Deletion
Selection
Species
8. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Founder Effect
Fossils
Gamete Isolation
Somatic
9. Organ that serves no useful function in an organism
Mesozoic era
Ice
Vestigial organs
Dihybrid
10. The study relating the evolution of new charateristics to changes in the genes controlling development
Hybrid Inviability
Evo Devo
Phenotype
Vestigial organs
11. 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.
Relative dating
vestigial (Evolution Evidence)
Biogeography
Dominant
12. Group of similar organisms that can breed and produce fertile offspring
Species
Founder Effect
Precambrian era
Substitution
13. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
Post -zygotic Mechanisms
Mendel's traits are now called _____ found on DNA
Analogous structures
14. Innate trait; shared ancestry
homologous (Evolution Evidence)
watson and crick
Gamete Isolation
cytosine in DNA is about equal to the percentage of guanine molecules
15. DNA is made of...
Monophyletic
Gene mutation
nucleotides
Autosomes
16. An episode of large - scale extinction affecting many different groups of organisms within a short period of time
Fossils
Mass Extinction
replication
tRNA
17. T or F If a nucleic acid contain uracil it is DNA
Locus
Allopatric Speciation
Fossils
False RNA
18. Chromosomes are collections of many
Variation
Migration
genes
Pentadactyl limb
19. All the genes in a population. genes are added by reproduction and immigration and lost by death and emigration
body fossils
Gene Pool
Fossils
Mutation
20. Human - like species that existed millions of years ago as witnessed through fossil evidence.
its negative charge
Hominid
Extinction
Species
21. Change to a chromosome in which a fragment of the chromosome is removed
Deletion
Ice
Industrial Melanism
Histone
22. Type of rock made from small pieces of other rocks and organisms pressed together. Source of fossil preservation. Limited radioactive or absolute dating potential.
Punnett Square
Histone
restriction enzyme
Sedimentary Rock
23. The molecules responsible for bringing amino acids to the ribosome during protein synthesis are
GATTACA
Dihybrid
Comparative anatomy
tRNA
24. 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.
Balanced Polymorphism
Biogeography
Relative dating
amino acids
25. How often a form of a gene appears in a gene pool
Bottleneck Effect
Allele Frequency
Biogeography
Homozygote
26. A distinct population of a species that varies from other populations of the same species.
Chargaff
Diploid
Sub - species
Test Cross
27. A change in the base sequence of DNA; the ultimate source of new alleles
Monohybrid
Mutation
Coevolution
Gene pool
28. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Punctuated Equilibrium
Precambrian era
vestigial (Evolution Evidence)
Amber
29. Transcrition occurs in the...
Hybrid Inviability
nucleus
Sexual Selection
index fossil
30. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Hybrid Breakdown
Balanced Polymorphism
GATTACA
Chargaff
31. Recognize and cut DNA at specific sequences usually palindromes
Locus
restriction enzyme
Homozygous
Sub - species
32. 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.
Genetic Equilibrium
Hominid
Gene
Deme
33. Is a base found in DNA and RNA. In DNA its partner is Thymine. In RNA its partner is Uracil
Comparative embryology
Clade
Adenine
Parallel Evolution
34. How often a particular gene occurs in the population
Gene frequency
Chromatid
Vestigial structure
three
35. Organism is preserved at very low temperatures. Preservation of both hard and soft parts can occur.
Convergent Evolution
Alleles
Ice
Somatic
36. DNA that is coiled around proteins
proteins
Comparative Embryology
molecular evidence
chromatin
37. Three dimensional shape of organism made from a mold. May be created with plaster or over time with minerals.
Cast
Genetic Drift
Selection
tRNA
38. All the factors in an organism's surroundings that can potentially affect it
Environment
Speciation
Genotype
cytoplasm
39. Natural disaster eliminates most of the population - members left contribute the alleles for the new population.
Dominant
Bottle neck effect
Fossils
Phyletic Gradualism (anagenesis)
40. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
Directional Selection
gel electrophoresis
Allopatric Speciation
Comparative embryology
41. The evolutionary history/geneology of a group of organisms (a tree thingy)
Phylogeny
tRNA
Reproductive Isolation
amino acids
42. Dna moves during electrophoresis because of...
its negative charge
Medel worked with _____
Phylogeny
Mold
43. The condition in which there is no change in allele frequencies from generation to generation (i.e. no evolution)
Selection
Directional Selection
Behavioral (ethological) Isolation
Genetic Equilibrium
44. Selection for the ability to obtain a mate
Sexual Selection
Geologic Evolution
Macroevolution
Evolution
45. 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
DNA
Founder effect
thymine
Incomplete Dominance
46. When F1 is fully fertile but F2 has low fertility (rice - cotton)
Hybrid Breakdown
mRNA
Parallel Evolution
Gene flow
47. Form of reproductive isolation in which tere are differences in species courtship behavior
Character Displacement
Behavioral (ethological) Isolation
deoxyribose and phosphate
Somatic
48. Three mRNA nucleotides that code for a specific amino acid
Phylogeny
Paleozoic era
codon
Hybrid Inviability
49. Another name for a gene
Industrial Melanism
Autosomes
Allele
Alleles
50. Trait where heterozygous is a blending of two alleles
Medel worked with _____
Genotype
Biogeography
Mechanical (morphological) Isolation