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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. Identical alleles for a gene
Homozygote
Phenotype
Adaptive Radiation
Adenine
2. Types of rocks formed after exposure to very high heat. Because of the high temperatures - fossils are not able to be recovered from these types of rocks. Absolute or radioactive dating is possible - however.
Balanced Polymorphism
index fossil
RNA polymerase
Igneous and metamorphic rock
3. A taxon originating from and including a single common ancestor
Fitness
Monohybrid
Heterozygous
Monophyletic
4. 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.
Phenotype
3 nucleotides
Mate Selection
Comparative Anatomy
5. 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.
Bottle neck effect
Divergent Evolution
Chromosome mutation
Dominant
6. Condition in which an organism has extra sets of chromosomes
Polyploidy
polypeptide
Evo Devo
Speciation
7. A type of natural selection in which genetic diversity decreases as the population stabilises on a particular trait value
Stabilising selection
Comparative Anatomy
RNA polymerase
Balanced Polymorphism
8. Recognize and cut DNA at specific sequences usually palindromes
Monophyletic
Directional Selection
Genetic Drift
restriction enzyme
9. A base found in DNA (but not in RNA). This base pairs with Adenine.
Adaptive Radiation
Thymine
watson and crick
Directional Selection
10. A unique combination of traits that are passed down from one generation to another.
Heritable variation
Mechanical (morphological) Isolation
Coevolution
cytosine in DNA is about equal to the percentage of guanine molecules
11. It is the time from when the Earth formed and simple life - forms evolved (and it is the longest era)
Precambrian era
tRNA
Polyploidy
Sympatric Speciation
12. Describes the existence of a prezygotic reproductive barrier between two species as a result of them occupying or breeding in different habitats within the same general geographical area
Heterozygous
Phyletic Gradualism (anagenesis)
Gene Flow
Ecological (habitat) Isolation
13. Form of reproductive isolation in which two populations reproduce at different times
Dominant
Temporal Isolation
Comparative Embryology
Test Cross
14. Messenger RNA; type of RNA that carries instructions from DNA in the nucleus to the ribosome
Adenine
Ecological Barrier
mRNA
Coevolution
15. 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.
Analogous structures
Temporal Isolation
Gametic
Geographical Isolation
16. The movement of individuals into an area
cytoplasm
Immigration
Cast
Population
17. Is the genetic makeup of an organism (TT or Tt) ; All the combinations of genes you have for a certain trait.
Comparative anatomy
Directional Selection
Genotype
transcription
18. Actual remains of an organism such as bones - teeth - shells - etc.
Founder effect
Insertion
body fossils
Recessive
19. The study relating the evolution of new charateristics to changes in the genes controlling development
Punctuated Equilibrium
Evo Devo
Medel worked with _____
DNA fingerprint
20. Movement of organisms ro of from a population
NIche Isolation
molecular evidence
hydrogen bonds
Migration
21. The gradual changes in gene frequencies in a population due to random events
Semi - conservative replication
Monohybrid
Clade
Genetic Drift
22. A copy of a gene is made during a process called this
Punnett Square
transcription
Population
Medel worked with _____
23. T or F If a nucleic acid contain uracil it is DNA
False RNA
Mendel's traits are now called _____ found on DNA
Mutation
Locus
24. Dna moves during electrophoresis because of...
False genes
NIche Isolation
amino acids
its negative charge
25. Heteros have a phenotype tintertmediate b/t phenotypes of the 2 homoz
Incomplete Dominance
amino acids
Biogeography
Common Ancestor
26. An equilibrium in the occurence of two or more different froms within the same population usually caused by different allele combiinations of a gene
Fossils
Balanced Polymorphism
Stabilising selection
three
27. Because of base pairing in DNA the amount of
False RNA
Mutagen
cytosine in DNA is about equal to the percentage of guanine molecules
Histone
28. Change in allele frequencies as a result of the migration of a small subgroup of a population
thymine
Heritable variation
Founder Effect
Analogous structures
29. Proteins are made of...
amino acids
restriction enzyme
RNA polymerase
Allele
30. Which type of Rna functions as a blue print of the genetic code
Comparative Embryology
mRNA
Gene
Hominid
31. Selection against one end of a range of variation - resulting in a progressive change in allele frequency
Bottle neck effect
Directional Selection
Hybrid Inviability
nucleus
32. Change to a chromosome in which part of the chromosome is repeated
Guanine
rRNA
Duplication
index fossil
33. Group of similar organisms that can breed and produce fertile offspring
Genetic Drift
Mesozoic era
anticodon
Species
34. A DNA double helix is held together in the center by between nitrogenous bases
Heritable variation
hydrogen bonds
vestigial (Evolution Evidence)
Deme
35. Mating of 2 oism that differ in 2 characters
Homologous structures
Dihybrid Cross
Sub - species
watson and crick
36. Selection acting against the extremes of a range of variation - resulting in resistance to change in allele frequencies
Ecological (habitat) Isolation
Genetic Equilibrium
Genetic Drift
Stabilising
37. Hybrid is sterile so biologically unfit
body fossils
Hybrid Infertility
Mesozoic era
Dominant
38. Is active during transcription
Adaptive Radiation
Polyploidy
RNA polymerase
Population
39. shape of a DNA molecule formed when two twisted DNA strands are coiled into a springlike structure and held together by hydrogen bonds between the bases.
Double Helix
Gene frequency
Dihybrid Cross
Punctuated Equilibrium
40. 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
rRNA
Autosomes
Natural Selection
geologic time scale
41. One of the types of fossils made from hardened tree resin. Preserves both hard and soft parts.
Hybrid Infertility
Amber
The cell uses information from mRNA to produce proteins
Insertion
42. Consists of all genes - including all the different alleles - that are present in a population
Gene pool
embryological evidence
Gamete Isolation
Hybrid Infertility
43. Shows how the embryos of different groups resemble each other at particular stages. Similarities indicate groups may share a common ancestor
mRNA
Coevolution
Test Cross
Comparative embryology
44. 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.
Heterozygous
Adaptive Radiation
Absolute dating
Post -zygotic Mechanisms
45. Any agent that can cause a change in DNA
rRNA
Fossils
Mutagen
Dominant
46. Which structure contains anticodons
Immigration
tRNA
Post -zygotic Mechanisms
Population
47. Organ no longer serves a function
Cytosine
vestigial (Evolution Evidence)
Chromosome mutation
Genotype
48. A codon is made of...
Nucleotide
its negative charge
genes
3 nucleotides
49. A model for the evolution of different froms over a long period of time but with only slight chchanges occring between successive generations
embryological evidence
Phyletic Gradualism (anagenesis)
tRNA
Macroevolution
50. Any preserved remains of an organism from the past. Usually found in sedimentary rock.
Ecological (habitat) Isolation
Stasis
Adaptation
Fossils